Fix protected branch detection in notification branch selection

Signed-off-by: Balasankar "Balu" C <balasankar@gitlab.com>

app/models/concerns/notification_branch_selection.rb

@@ -21,7 +21,7 @@ module NotificationBranchSelection
           end
 
     is_default_branch = ref == project.default_branch
-    is_protected_branch = project.protected_branches.exists?(name: ref)
+    is_protected_branch = ProtectedBranch.protected?(project, ref)
 
     case branches_to_be_notified
     when "all"

changelogs/unreleased/33582-fix-protected-branch-wildcard.yml

+---
+title: Fix protected branch detection used by notification service
+merge_request: 18221
+author:
+type: fixed