Fix "Fix conflicts in filtered search"

app/assets/javascripts/filtered_search/filtered_search_dropdown.js

@@ -108,6 +108,9 @@ class FilteredSearchDropdown {
 
     if (hook) {
       const data = hook.list.data || [];
+
+      if (!data) return;
+
       const results = data.map((o) => {
         const updated = o;
         updated.droplab_hidden = false;

app/assets/javascripts/filtered_search/filtered_search_manager.js

@@ -137,6 +137,8 @@ class FilteredSearchManager {
       const { lastVisualToken } = gl.FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
 
       if (this.filteredSearchInput.value === '' && lastVisualToken) {
+        if (this.canEdit && !this.canEdit(lastVisualToken)) return;
+
         this.filteredSearchInput.value = gl.FilteredSearchVisualTokens.getLastTokenPartial();
         gl.FilteredSearchVisualTokens.removeLastTokenPartial();
       }
@@ -222,6 +224,8 @@ class FilteredSearchManager {
   editToken(e) {
     const token = e.target.closest('.js-visual-token');
 
+    if (this.canEdit && !this.canEdit(token)) return;
+
     if (token) {
       gl.FilteredSearchVisualTokens.editToken(token);
       this.tokenChange();