$ git clone -n https://src.fedoraproject.org/rpms/nip2.git /var/lib/mock/f41-build-1280152-23177/root/chroot_tmpdir/scmroot/nip2
Cloning into '/var/lib/mock/f41-build-1280152-23177/root/chroot_tmpdir/scmroot/nip2'...
$ git fetch origin bab83e2b88dd1df99b84dddf56602c56c55a34f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nip2
 * [new ref]         bab83e2b88dd1df99b84dddf56602c56c55a34f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bab83e2 Eliminate use of obsolete %patchN syntax (#2283636)