Change $emit invoke to single argument

ee/app/assets/javascripts/related_items_tree/components/create_epic_form.vue

@@ -93,7 +93,7 @@ export default {
     ...mapActions(['fetchDescendantGroups']),
     onFormSubmit() {
       const groupFullPath = this.selectedGroup?.full_path;
-      this.$emit('createEpicFormSubmit', this.inputValue.trim(), groupFullPath);
+      this.$emit('createEpicFormSubmit', { value: this.inputValue.trim(), groupFullPath });
     },
     onFormCancel() {
       this.$emit('createEpicFormCancel');

ee/app/assets/javascripts/related_items_tree/components/related_items_tree_app.vue

@@ -135,9 +135,9 @@ export default {
         this.addItem();
       }
     },
-    handleCreateEpicFormSubmit(newValue, groupFullPath) {
+    handleCreateEpicFormSubmit({ value, groupFullPath }) {
       this.createItem({
-        itemTitle: newValue,
+        itemTitle: value,
         groupFullPath,
       });
     },

ee/spec/frontend/related_items_tree/components/create_epic_form_spec.js

@@ -112,7 +112,12 @@ describe('RelatedItemsTree', () => {
           wrapper.vm.onFormSubmit();
 
           expect(wrapper.emitted().createEpicFormSubmit).toBeTruthy();
-          expect(wrapper.emitted().createEpicFormSubmit[0]).toEqual([value, undefined]);
+          expect(wrapper.emitted().createEpicFormSubmit[0]).toEqual([
+            {
+              value,
+              groupFullPath: undefined,
+            },
+          ]);
         });
       });
 

ee/spec/frontend/related_items_tree/components/related_items_tree_app_spec.js

@@ -134,10 +134,11 @@ describe('RelatedItemsTreeApp', () => {
         const newValue = 'foo';
         jest.spyOn(wrapper.vm, 'createItem').mockImplementation();
 
-        wrapper.vm.handleCreateEpicFormSubmit(newValue);
+        wrapper.vm.handleCreateEpicFormSubmit({ value: newValue });
 
         expect(wrapper.vm.createItem).toHaveBeenCalledWith({
           itemTitle: newValue,
+          groupFullPath: undefined,
         });
       });
     });