Fixes bug on multiple autocomplete reseting the form value when typing. (Issue #135)

dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.ts

@@ -205,7 +205,7 @@ export class MultipleAutoCompleteComponent implements OnInit, MatFormFieldContro
 					if (this._isValidObject(query)) { return observableOf([]); }
 
 					// Since the object is changed we need to clear any existing selections, except for the first time.
-					if (query !== null) { this.pushChanges(null); }
+					// if (query !== null) { this.pushChanges(null); }
 					return this.filter(query);
 				}),
 				tap(() => { this.loading = false; }));