$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-atlasrep.git /var/lib/mock/f41-build-1102505-20044/root/chroot_tmpdir/scmroot/gap-pkg-atlasrep
Cloning into '/var/lib/mock/f41-build-1102505-20044/root/chroot_tmpdir/scmroot/gap-pkg-atlasrep'...
$ git fetch origin 22c5951ef01c15c46ba08641f0bbf2f46aa92905:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-atlasrep
 * [new ref]         22c5951ef01c15c46ba08641f0bbf2f46aa92905 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22c5951 Rebuild for gap 4.13.0