Prevent a request when changing from an empty array to another empty array since vue sees it as a change.

Author: jasonvarga

resources/js/components/inputs/relationship/RelationshipInput.vue

@@ -203,7 +203,9 @@ export default {
             this.$emit('item-data-updated', data);
         },
 
-        value(value) {
+        value(value, oldValue) {
+            if (JSON.stringify(value) === JSON.stringify(oldValue)) return;
+
             // If all the values already have their data stored, then don't bother fetching it again.
             if (value.every(id => this.data.map(item => item.id).includes(id))) return;