Add suffix for merge request event

Fix

ok

Add spec

Fix

ok

Fix

Add changelog

Fix

Add memoization

a

fix

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/gitlab/ci/build/policy/refs.rb b/lib/gitlab/ci/build/policy/refs.rb
index 0e9bb5c94bb..df5f5ffc253 100644
--- a/lib/gitlab/ci/build/policy/refs.rb
+++ b/lib/gitlab/ci/build/policy/refs.rb
@@ -29,8 +29,8 @@ module Gitlab
           def matches_pattern?(pattern, pipeline)
             return true if pipeline.tag? && pattern == 'tags'
             return true if pipeline.branch? && pattern == 'branches'
-            return true if pipeline.source == pattern
-            return true if pipeline.source&.pluralize == pattern
+            return true if sanitized_source_name(pipeline) == pattern
+            return true if sanitized_source_name(pipeline)&.pluralize == pattern
 
             # patterns can be matched only when branch or tag is used
             # the pattern matching does not work for merge requests pipelines
@@ -42,6 +42,10 @@ module Gitlab
               end
             end
           end
+
+          def sanitized_source_name(pipeline)
+            @sanitized_source_name ||= pipeline&.source&.delete_suffix('_event')
+          end
         end
       end
     end