$ git clone -n https://src.fedoraproject.org/rpms/golang-github-git-5.git /var/lib/mock/f41-build-1281845-23194/root/chroot_tmpdir/scmroot/golang-github-git-5
Cloning into '/var/lib/mock/f41-build-1281845-23194/root/chroot_tmpdir/scmroot/golang-github-git-5'...
$ git fetch origin da805eb25eb388a429de295bec63cb6a1fd0db01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-git-5
 * [new ref]         da805eb25eb388a429de295bec63cb6a1fd0db01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da805eb Update to 5.12.0 - Closes rhbz#2214601 rhbz#2255090 rhbz#2259808 rhbz#2259817 rhbz#2259827 rhbz#2259832