Merge branch '1059557_FixAttributeChildAttributeButton' into '2020.1'

[Projekt: Entwicklung - Neon][TicketNr.: 1059557]["Untergeordnete Eigenschaft...

See merge request xrm/basic!311

entity/Attribute_entity/entityfields/attributeactions/children/newchildattribute/stateProcess.js

@@ -3,7 +3,7 @@ import("system.result");
 import("system.vars");
 import("system.neon");
 
-if(vars.get("$sys.selection").length == 1 && (vars.get("$field.ATTRIBUTE_TYPE") == $AttributeTypes.GROUP.toString() || vars.get("$field.ATTRIBUTE_TYPE") == $AttributeTypes.OBJECTSELECTION.toString()))
+if(vars.get("$sys.selection").length == 1 && AttributeTypeUtil.isGroupType(vars.get("$field.ATTRIBUTE_TYPE")))
     result.string(neon.COMPONENTSTATE_EDITABLE);
 else
     result.string(neon.COMPONENTSTATE_DISABLED);
\ No newline at end of file