$ git clone -n https://src.fedoraproject.org/rpms/golang-github-bep-godartsass.git /var/lib/mock/f40-build-2208380-52127/root/chroot_tmpdir/scmroot/golang-github-bep-godartsass
Cloning into '/var/lib/mock/f40-build-2208380-52127/root/chroot_tmpdir/scmroot/golang-github-bep-godartsass'...
$ git fetch origin 0d590c736dcfddb0dd6148023fa89959741a6895:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-bep-godartsass
 * [new ref]         0d590c736dcfddb0dd6148023fa89959741a6895 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d590c7 Update to 1.2.0