Increase the minimum length for commit SHA matching to 7rs-issue-12706

This is the git default and will help to prevent false positive matches.

Closes #12706

1 files changed, 3 insertions, 3 deletions

diff --git a/app/models/commit.rb b/app/models/commit.rb
index 0ba7b584d91..23b771aebb7 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -68,18 +68,18 @@ class Commit
 
   # Pattern used to extract commit references from text
   #
-  # The SHA can be between 6 and 40 hex characters.
+  # The SHA can be between 7 and 40 hex characters.
   #
   # This pattern supports cross-project references.
   def self.reference_pattern
     %r{
       (?:#{Project.reference_pattern}#{reference_prefix})?
-      (?<commit>\h{6,40})
+      (?<commit>\h{7,40})
     }x
   end
 
   def self.link_reference_pattern
-    super("commit", /(?<commit>\h{6,40})/)
+    super("commit", /(?<commit>\h{7,40})/)
   end
 
   def to_reference(from_project = nil)