JSON: fix: retraction settings not visible for UM2 anymore (CURA-875)
JSON: fix: retraction settings not visible for UM2 anymore (CURA-875)

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