$ git clone -n https://src.fedoraproject.org/rpms/ksig.git /var/lib/mock/f41-build-1021962-18041/root/chroot_tmpdir/scmroot/ksig
Cloning into '/var/lib/mock/f41-build-1021962-18041/root/chroot_tmpdir/scmroot/ksig'...
$ git fetch origin 9f5c69dd5d9133a60f6e26678dd48513f13fe83f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ksig
 * [new ref]         9f5c69dd5d9133a60f6e26678dd48513f13fe83f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f5c69d Eliminate use of obsolete %patchN syntax (#2283636)