1 files changed, 17 insertions, 0 deletions

diff --git a/app/services/discussions/unresolve_service.rb b/app/services/discussions/unresolve_service.rb
index fbd96ceafe7..f6685b79a33 100644
--- a/app/services/discussions/unresolve_service.rb
+++ b/app/services/discussions/unresolve_service.rb
@@ -12,10 +12,27 @@ module Discussions
     end
 
     def execute
+      @all_discussions_resolved_before = merge_request ? @discussion.noteable.discussions_resolved? : false
+
       @discussion.unresolve!
 
+      send_graphql_triggers
+
       Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter
         .track_unresolve_thread_action(user: @user)
     end
+
+    private
+
+    def merge_request
+      @discussion.noteable if @discussion.for_merge_request?
+    end
+    strong_memoize_attr :merge_request
+
+    def send_graphql_triggers
+      return unless merge_request && @all_discussions_resolved_before
+
+      GraphqlTriggers.merge_request_merge_status_updated(merge_request)
+    end
   end
 end