Dont show last push widget if user removed this branch

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/helpers/application_helper.rb

@@ -126,6 +126,9 @@ module ApplicationHelper
     # Skip if user already created appropriate MR
     return false if project.merge_requests.where(source_branch: event.branch_name).opened.any?
 
+    # Skip if user removed branch right after that
+    return false unless project.repository.branch_names.include?(event.branch_name)
+
     true
   end