$ git clone -n https://src.fedoraproject.org/rpms/splat.git /var/lib/mock/f41-build-814577-14252/root/chroot_tmpdir/scmroot/splat
Cloning into '/var/lib/mock/f41-build-814577-14252/root/chroot_tmpdir/scmroot/splat'...
$ git fetch origin 819213dbeab2d92f2ba5e7767630e85615118ac4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/splat
 * [new ref]         819213dbeab2d92f2ba5e7767630e85615118ac4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 819213d Eliminate use of obsolete %patchN syntax (#2283636)