Merge branch 'cm_sp_1081261_UIDsOverride' into '2021.1.0'

[Projekt: xRM-ContactManagement][TicketNr.: 1081261][UIDs werden für Neuanlage falsch vorbelegt]

See merge request xrm/basic!1023

entity/Stock_entity/entityfields/stockid/valueProcess.js

@@ -3,5 +3,7 @@ import("system.vars");
 import("system.result");
 import("system.neon");
 
-if(vars.get("$sys.recordstate") == neon.OPERATINGSTATE_NEW)
-    result.string(util.getNewUUID());
\ No newline at end of file
+if (vars.get("$sys.recordstate") == neon.OPERATINGSTATE_NEW && vars.get("$this.value") == null)
+{
+    result.string(util.getNewUUID());
+}
\ No newline at end of file