fix: The loading cannot be canceled

The loading state cannot be canceled when create a flavor with a existing name

Closes-Bug: #1990362
Change-Id: I409024fe9a47103e9e6401d408b739d0365bd621

src/stores/nova/flavor.js

@@ -116,6 +116,7 @@ export class FlavorStore extends Base {
   async create(data, extraSpecs, accessControl) {
     const body = {};
     body[this.responseKey] = data;
+    try {
       this.isSubmitting = true;
       const result = await this.client.create(body);
       const { id } = result.flavor;
@@ -135,6 +136,10 @@ export class FlavorStore extends Base {
         );
       }
       return this.submitting(this.client.extraSpecs.create(id, extraBody));
+    } catch (error) {
+      this.isSubmitting = false;
+      return Promise.reject(error);
+    }
   }
 
   @action