couldn't find remote ref refs/pull/21/merge

couldn't find remote ref refs/pull/21/merge

couldn't find remote ref refs/pull/21/merge

Git fetch failed with exit code: 128

Exit code 1 returned from process: file name '/Users/runner/runners/2.316.1/bin/Runner.PluginHost', arguments 'action "GitHub.Runner.Plugins.Repository.v1_0.CheckoutTask, Runner.Plugins"'.

Git fetch failed with exit code 128, back off 4.682 seconds before retry.