Merge pull request #11033 from opf/fix/42965-project-select-search-param-merge

Fix search params in project autocompleter

frontend/src/app/shared/components/autocompleter/project-autocompleter/project-autocompleter.component.ts

@@ -187,7 +187,7 @@ export class ProjectAutocompleterComponent implements ControlValueAccessor {
           ...params,
         };
         const collectionURL = `${listParamsString(fullParams)}&${url.searchParams.toString()}`;
-        url.searchParams.forEach((key) => url.searchParams.delete(key));
+        url.search = '';
         return this.http.get<IHALCollection<IProject>>(url.toString() + collectionURL);
       },
     )