$ git clone -n https://src.fedoraproject.org/rpms/milkytracker.git /var/lib/mock/f41-build-1022362-18070/root/chroot_tmpdir/scmroot/milkytracker
Cloning into '/var/lib/mock/f41-build-1022362-18070/root/chroot_tmpdir/scmroot/milkytracker'...
$ git fetch origin a2b2d6ec8f1cdc3bf8c0e3d4e2b94836486a0a96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/milkytracker
 * [new ref]         a2b2d6ec8f1cdc3bf8c0e3d4e2b94836486a0a96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2b2d6e Eliminate use of obsolete %patchN syntax (#2283636)