$ git clone -n https://src.fedoraproject.org/rpms/libofa.git /var/lib/mock/f41-build-1266706-23069/root/chroot_tmpdir/scmroot/libofa
Cloning into '/var/lib/mock/f41-build-1266706-23069/root/chroot_tmpdir/scmroot/libofa'...
$ git fetch origin 87dcddddcb5b0728594ba1ba04b20b4aa50cdc20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libofa
 * [new ref]         87dcddddcb5b0728594ba1ba04b20b4aa50cdc20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87dcddd Eliminate use of obsolete %patchN syntax (#2283636)