Fix cannot set instance property

Signed-off-by: MichaelMorris <michael.morris@est.tech>
Issue-ID: SDC-4543
Change-Id: I9d98429b2fa9ff2d897a35551d89b9fc3e5cfd48
diff --git a/catalog-ui/src/app/ng2/pages/properties-assignment/properties-assignment.page.component.ts b/catalog-ui/src/app/ng2/pages/properties-assignment/properties-assignment.page.component.ts
index 834f28e..b6abb78 100644
--- a/catalog-ui/src/app/ng2/pages/properties-assignment/properties-assignment.page.component.ts
+++ b/catalog-ui/src/app/ng2/pages/properties-assignment/properties-assignment.page.component.ts
@@ -309,7 +309,7 @@
     }
 
     disablePropertyValue = () : boolean => {
-        if (this.component.isService() && this.doNotExtendBaseType){
+        if (this.component.isService() && this.doNotExtendBaseType && this.isSelf()){
             return true;
         }
         return false;