remove entities which are present twice

src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourse/components/Resources.vue

@@ -89,6 +89,18 @@ export default {
                }
             }
          )
+          // filter persons appearing twice in requestor and resources
+          .filter(
+              (e, index, suggested) => {
+                for (let i = 0; i < suggested.length; i = i+1) {
+                  if (i < index && e.id === suggested[i].id) {
+                    return false
+                  }
+                }
+
+                return true;
+              }
+          )
    }),
    methods: {
       removeResource(item) {