$ git clone -n https://src.fedoraproject.org/rpms/snip.git /var/lib/mock/f41-build-1119184-20253/root/chroot_tmpdir/scmroot/snip
Cloning into '/var/lib/mock/f41-build-1119184-20253/root/chroot_tmpdir/scmroot/snip'...
$ git fetch origin 9019620d0c78c56c3e9487ce93b00cf261bcec3a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/snip
 * [new ref]         9019620d0c78c56c3e9487ce93b00cf261bcec3a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9019620 Eliminate use of obsolete %patchN syntax (#2283636)