Properly implement ContainerManager::createQualityChanges
Properly implement ContainerManager::createQualityChanges

Contributes to CURA-2006

totalretribution/Cura,ynotstartups/Wanhao,fieldOfView/Cura,senttech/Cura,ynotstartups/Wanhao,Curahelper/Cura,Curahelper/Cura,fieldOfView/Cura,senttech/Cura,hmflash/Cura,hmflash/Cura,totalretribution/Cura