$ git clone -n https://src.fedoraproject.org/rpms/trayscale.git /var/lib/mock/f41-build-844370-162503/root/chroot_tmpdir/scmroot/trayscale
Cloning into '/var/lib/mock/f41-build-844370-162503/root/chroot_tmpdir/scmroot/trayscale'...
$ git fetch origin 4d779bf4721cc50680573d1998d14ea33aaab067:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trayscale
 * [new ref]         4d779bf4721cc50680573d1998d14ea33aaab067 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d779bf update to 0.13.1