$ git clone -n https://src.fedoraproject.org/rpms/libxdg-basedir.git /var/lib/mock/f41-build-1037357-18787/root/chroot_tmpdir/scmroot/libxdg-basedir
Cloning into '/var/lib/mock/f41-build-1037357-18787/root/chroot_tmpdir/scmroot/libxdg-basedir'...
$ git fetch origin 931b136c4174c7d0faacbeb87196583218eb89e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libxdg-basedir
 * [new ref]         931b136c4174c7d0faacbeb87196583218eb89e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 931b136 Eliminate use of obsolete %patchN syntax (#2283636)