$ git clone -n https://src.fedoraproject.org/rpms/nsca.git /var/lib/mock/f41-build-1280172-23177/root/chroot_tmpdir/scmroot/nsca
Cloning into '/var/lib/mock/f41-build-1280172-23177/root/chroot_tmpdir/scmroot/nsca'...
$ git fetch origin bdd0d81e39b1c771aa49a40cabd38bcc53caee81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nsca
 * [new ref]         bdd0d81e39b1c771aa49a40cabd38bcc53caee81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdd0d81 Eliminate use of obsolete %patchN syntax (#2283636)