$ git clone -n https://src.fedoraproject.org/rpms/libnids.git /var/lib/mock/f41-build-832199-14881/root/chroot_tmpdir/scmroot/libnids
Cloning into '/var/lib/mock/f41-build-832199-14881/root/chroot_tmpdir/scmroot/libnids'...
$ git fetch origin 39a0830c0fd9e3fad85839553a4e8c164283d48c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnids
 * [new ref]         39a0830c0fd9e3fad85839553a4e8c164283d48c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39a0830 Eliminate use of obsolete %patchN syntax (#2283636)