fix empty Offer contentTitle

entity/Offer_entity/entityfields/fulloffercode/valueProcess.js

+import("system.translate");
 import("system.result");
 import("system.vars");
 
-//a filedGroup cannot be placed in a table (filter-view) at the moment and therefore a separate field is needed:
-result.string(vars.get("$field.OFFERCODE") + "-" + vars.get("$field.VERSNR"));
+//a fieldGroup cannot be placed in a table (filter-view) at the moment and therefore a separate field is needed:
+if(!vars.get("$field.OFFERCODE") && !vars.get("$field.VERSNR"))
+    result.string(translate.text("Offer"));
+else
+    result.string(vars.get("$field.OFFERCODE") + "-" + vars.get("$field.VERSNR"));