Fix CreateSubject's query value in CreateCourse

aleksis/apps/cursus/frontend/components/CreateCourse.vue

@@ -37,7 +37,7 @@ import CreateSubject from "./CreateSubject.vue";
             <create-subject
               v-bind="attrs2"
               v-on="on2"
-              :qql-query="gqlQuery"
+              :qql-query="subject.gqlQuery"
             ></create-subject>
           </template>
         </foreign-key-field>