$ git clone -n https://src.fedoraproject.org/rpms/scorchwentbonkers.git /var/lib/mock/f41-build-1049360-19179/root/chroot_tmpdir/scmroot/scorchwentbonkers
Cloning into '/var/lib/mock/f41-build-1049360-19179/root/chroot_tmpdir/scmroot/scorchwentbonkers'...
$ git fetch origin 4fa2169e75410a407eaca6e46cc4b79e6b65b30b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scorchwentbonkers
 * [new ref]         4fa2169e75410a407eaca6e46cc4b79e6b65b30b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4fa2169 Eliminate use of obsolete %patchN syntax (#2283636)