$ git clone -n https://src.fedoraproject.org/rpms/dvtm.git /var/lib/mock/f41-build-1072485-19725/root/chroot_tmpdir/scmroot/dvtm
Cloning into '/var/lib/mock/f41-build-1072485-19725/root/chroot_tmpdir/scmroot/dvtm'...
$ git fetch origin d1a40725303ea93be18d012c23b0ab4de04a41f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dvtm
 * [new ref]         d1a40725303ea93be18d012c23b0ab4de04a41f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1a4072 Eliminate use of obsolete %patchN syntax (#2283636)