3.0.X und 2.11.X: Fehlermeldung Benutzergruppen

Hallo,

ich will, dass mein Redakteur einen normalen Text einstellen und ein Bild hinzufügen darf. Dazu soll er die "Breite und Höhe" des Bildes und die Ausrichtung bestimmen düfen. NICHT aber den "Bildabstand" (das regele ich über CSS).
Dazu nehme ich in der Benutzergruppenverwaltung unter tl_content den Haken bei "Bildabstand" heraus. Wenn sich jetzt der Redakteur anmeldet, Text und Bild einstellt und mit speichern und zurück abschließt, erscheint sowohl im BE als auch im FE folgende Fehlermeldung:

Warning: Illegal string offset 'top' in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php on line 2104

#0 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(2104): __error(2, 'Illegal string ...', '/homepages/28/d...', 2104, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(3017): Contao\Controller::generateMargin('', 'padding')
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentText.php(79): Contao\Controller::addImageToTemplate(Object(Conta o\FrontendTemplate), Array)
#3 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentElement.php(151): Contao\ContentText->compile()
#4 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(426): Contao\ContentElement->generate()
#5 /homepages/28/d37771296/htdocs/live/system/cache/dca/tl_content.php(999): Contao\Controller->getContentElement('611')
#6 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(3852): tl_content->addCteType(Array)
#7 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(351): Contao\DC_Table->parentView()
#8 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/Backend.php(382): Contao\DC_Table->showAll()
#9 /homepages/28/d37771296/htdocs/live/contao/main.php(121): Contao\Backend->getBackendModule('article')
#10 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#11 {main}

Warning: Illegal string offset 'right' in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php on line 2105

#0 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(2105): __error(2, 'Illegal string ...', '/homepages/28/d...', 2105, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(3017): Contao\Controller::generateMargin('', 'padding')
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentText.php(79): Contao\Controller::addImageToTemplate(Object(Conta o\FrontendTemplate), Array)
#3 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentElement.php(151): Contao\ContentText->compile()
#4 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(426): Contao\ContentElement->generate()
#5 /homepages/28/d37771296/htdocs/live/system/cache/dca/tl_content.php(999): Contao\Controller->getContentElement('611')
#6 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(3852): tl_content->addCteType(Array)
#7 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(351): Contao\DC_Table->parentView()
#8 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/Backend.php(382): Contao\DC_Table->showAll()
#9 /homepages/28/d37771296/htdocs/live/contao/main.php(121): Contao\Backend->getBackendModule('article')
#10 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#11 {main}

Warning: Illegal string offset 'bottom' in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php on line 2106

#0 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(2106): __error(2, 'Illegal string ...', '/homepages/28/d...', 2106, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(3017): Contao\Controller::generateMargin('', 'padding')
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentText.php(79): Contao\Controller::addImageToTemplate(Object(Conta o\FrontendTemplate), Array)
#3 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentElement.php(151): Contao\ContentText->compile()
#4 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(426): Contao\ContentElement->generate()
#5 /homepages/28/d37771296/htdocs/live/system/cache/dca/tl_content.php(999): Contao\Controller->getContentElement('611')
#6 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(3852): tl_content->addCteType(Array)
#7 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(351): Contao\DC_Table->parentView()
#8 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/Backend.php(382): Contao\DC_Table->showAll()
#9 /homepages/28/d37771296/htdocs/live/contao/main.php(121): Contao\Backend->getBackendModule('article')
#10 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#11 {main}

Warning: Illegal string offset 'left' in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php on line 2107

#0 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(2107): __error(2, 'Illegal string ...', '/homepages/28/d...', 2107, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(3017): Contao\Controller::generateMargin('', 'padding')
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentText.php(79): Contao\Controller::addImageToTemplate(Object(Conta o\FrontendTemplate), Array)
#3 /homepages/28/d37771296/htdocs/live/system/modules/core/elements/ContentElement.php(151): Contao\ContentText->compile()
#4 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Controller.php(426): Contao\ContentElement->generate()
#5 /homepages/28/d37771296/htdocs/live/system/cache/dca/tl_content.php(999): Contao\Controller->getContentElement('611')
#6 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(3852): tl_content->addCteType(Array)
#7 /homepages/28/d37771296/htdocs/live/system/modules/core/drivers/DC_Table.php(351): Contao\DC_Table->parentView()
#8 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/Backend.php(382): Contao\DC_Table->showAll()
#9 /homepages/28/d37771296/htdocs/live/contao/main.php(121): Contao\Backend->getBackendModule('article')
#10 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#11 {main}

Warning: Cannot modify header information - headers already sent by (output started at /homepages/28/d37771296/htdocs/live/system/helper/functions.php:69) in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Template.php on line 277

#0 [internal function]: __error(2, 'Cannot modify h...', '/homepages/28/d...', 277, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Template.php(277): header('Vary: User-Agen...', false)
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/BackendTemplate.php(156): Contao\Template->output()
#3 /homepages/28/d37771296/htdocs/live/contao/main.php(310): Contao\BackendTemplate->output()
#4 /homepages/28/d37771296/htdocs/live/contao/main.php(125): Main->output()
#5 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#6 {main}

Warning: Cannot modify header information - headers already sent by (output started at /homepages/28/d37771296/htdocs/live/system/helper/functions.php:69) in /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Template.php on line 278

#0 [internal function]: __error(2, 'Cannot modify h...', '/homepages/28/d...', 278, Array)
#1 /homepages/28/d37771296/htdocs/live/system/modules/core/library/Contao/Template.php(278): header('Content-Type: t...')
#2 /homepages/28/d37771296/htdocs/live/system/modules/core/classes/BackendTemplate.php(156): Contao\Template->output()
#3 /homepages/28/d37771296/htdocs/live/contao/main.php(310): Contao\BackendTemplate->output()
#4 /homepages/28/d37771296/htdocs/live/contao/main.php(125): Main->output()
#5 /homepages/28/d37771296/htdocs/live/contao/main.php(319): Main->run()
#6 {main}

Erst, wenn ich den den Haken bei "Bildabstand" setze, ensteht die Fehlermeldung nicht mehr.

Ich möchte den Redakteur aber eine möglichst einfache Maske und wenig Spielmöglichkeiten geben. Aufgrund des Verhaltens von Conatao (mE erst seit 2.11.7) musste ich "Bildabstand" mit dem Hinweis an den Redakteur hinzugeben, er möge es ignorieren und dort nichts einsetzen.

Ist das so gewollt? Oder ist das ein Bug?

Gruß Georgi