Revert merge request approval groups behavior

Merge branch '14-7_fix_merge_request_approval_rules' into '14-7-stable-ee'

See merge request gitlab-org/security/gitlab!2333

Changelog: security

ee/app/assets/javascripts/approvals/components/approvers_select.vue

@@ -135,15 +135,13 @@ export default {
         .then((results) => ({ results }));
     },
     fetchGroups(term) {
-      const hasTerm = term.trim().length > 0;
-      const DEVELOPER_ACCESS_LEVEL = 30;
-      return Api.projectGroups(this.projectId, {
+      // Don't includeAll when search is empty. Otherwise, the user could get a lot of garbage choices.
+      // https://gitlab.com/gitlab-org/gitlab/issues/11566
+      const includeAll = term.trim().length > 0;
+      return Api.groups(term, {
         skip_groups: this.skipGroupIds,
-        ...(hasTerm ? { search: term } : {}),
-        with_shared: true,
-        shared_visible_only: true,
-        shared_min_access_level: DEVELOPER_ACCESS_LEVEL,
+        all_available: includeAll,
       });
     },
     fetchUsers(term) {

ee/spec/frontend/approvals/components/approvers_select_spec.js

@@ -73,6 +73,7 @@ describe('Approvals ApproversSelect', () => {
   };
   beforeEach(() => {
+    jest.spyOn(Api, 'groups').mockResolvedValue(TEST_GROUPS);
     jest.spyOn(Api, 'projectGroups').mockResolvedValue(TEST_GROUPS);
     jest.spyOn(Api, 'projectUsers').mockReturnValue(Promise.resolve(TEST_USERS));
   });
@@ -123,12 +124,9 @@ describe('Approvals ApproversSelect', () => {
     });
     it('fetches all available groups', () => {
-      expect(Api.projectGroups).toHaveBeenCalledWith(TEST_PROJECT_ID, {
+      expect(Api.groups).toHaveBeenCalledWith(term, {
         skip_groups: [],
-        search: term,
-        with_shared: true,
-        shared_visible_only: true,
-        shared_min_access_level: 30,
+        all_available: true,
       });
     });
@@ -160,11 +158,9 @@ describe('Approvals ApproversSelect', () => {
     });
     it('skips groups and does not fetch all available', () => {
-      expect(Api.projectGroups).toHaveBeenCalledWith(TEST_PROJECT_ID, {
-        shared_min_access_level: 30,
-        shared_visible_only: true,
+      expect(Api.groups).toHaveBeenCalledWith('', {
         skip_groups: skipGroupIds,
-        with_shared: true,
+        all_available: false,
       });
     });