$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mock.git /var/lib/mock/f40-build-2252353-54182/root/chroot_tmpdir/scmroot/golang-github-mock
Cloning into '/var/lib/mock/f40-build-2252353-54182/root/chroot_tmpdir/scmroot/golang-github-mock'...
$ git fetch origin c95cd8f8eb0e9dc6fbcf96465dbc8e324acdcd73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mock
 * [new ref]         c95cd8f8eb0e9dc6fbcf96465dbc8e324acdcd73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c95cd8f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild