$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mock.git /var/lib/mock/f40-build-2479531-61613/root/chroot_tmpdir/scmroot/golang-github-mock
Cloning into '/var/lib/mock/f40-build-2479531-61613/root/chroot_tmpdir/scmroot/golang-github-mock'...
$ git fetch origin 83ee7d1a57d0dc5e40793f425abe3464ae1d9ec5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mock
 * [new ref]         83ee7d1a57d0dc5e40793f425abe3464ae1d9ec5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83ee7d1 Rebuild for golang 1.22.0