• Open back-office
• the tag tool is already opened
• click on a tag
• click on modify

An error occured

TypeError: Cannot read property 'contains' of undefined
TypeError: Cannot read property 'contains' of undefined
at constructor.syncMaskState (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:129309:27)
at constructor.afterShow (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:129277:12)
at constructor.show (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:67516:34)
at constructor.callParent (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:12184:32)
at constructor.show (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:129265:19)
at constructor._showWaitMessage (http://cmsdev.carcassonne-agglo.fr/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:719:33)
at constructor.send (http://cmsdev.carcassonne-agglo.fr/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:309:31)
at constructor.callMethod (http://cmsdev.carcassonne-agglo.fr/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:364:9)
at constructor._initForm (http://cmsdev.carcassonne-agglo.fr/plugins/cms/resources/js/Ametys/plugins/cms/tag/TagActions.js:356:36)
at Object.callback (http://cmsdev.carcassonne-agglo.fr/plugins/extjs6/resources/ext-all-debug.js:6711:35)
[code}