Fix for user invitations throwing a 501 error due to the way the search was being performed.

packages/builder/src/pages/builder/app/[application]/_components/BuilderSidePanel.svelte

@@ -112,9 +112,9 @@
     }
     await usersFetch.update({
       query: {
-        appId: query || !filterByAppAccess ? null : prodAppId,
-        email: query,
+        string: { email: query },
       },
+      appId: query || !filterByAppAccess ? null : prodAppId,
       limit: 50,
       paginate: query || !filterByAppAccess ? null : false,
     })

packages/frontend-core/src/fetch/UserFetch.js

@@ -33,7 +33,7 @@ export default class UserFetch extends DataFetch {
     let finalQuery
     // convert old format to new one - we now allow use of the lucene format
     const { appId, paginated, ...rest } = query
-    if (!LuceneUtils.hasFilters(query) && rest.email) {
+    if (!LuceneUtils.hasFilters(query) && rest.email != null) {
       finalQuery = { string: { email: rest.email } }
     } else {
       finalQuery = rest