Merge pull request #9681 from ruby/claude/forward-port-a27d3e

Disable git background maintenance in bundler specs

(cherry picked from commit c452a34)

Author: hsbt

bundler/spec/spec_helper.rb

@@ -115,6 +115,16 @@ def self.ruby=(ruby)
       ENV["GIT_CONFIG_NOSYSTEM"] = "1"
     end
 
+    # Disable git background maintenance. Since Git 2.46, commands like
+    # `git commit` spawn a detached `git maintenance run --auto` process,
+    # which briefly creates `.git/objects/maintenance.lock`. That races with
+    # specs copying repositories with FileUtils.cp_r, causing flaky ENOENT
+    # failures. GIT_CONFIG_COUNT is available since Git 2.31 and silently
+    # ignored by older versions.
+    ENV["GIT_CONFIG_COUNT"] = "1"
+    ENV["GIT_CONFIG_KEY_0"] = "maintenance.auto"
+    ENV["GIT_CONFIG_VALUE_0"] = "false"
+
     # Don't wrap output in tests
     ENV["THOR_COLUMNS"] = "10000"