$ git clone -n https://src.fedoraproject.org/rpms/gxemul.git /var/lib/mock/f41-build-1065784-19550/root/chroot_tmpdir/scmroot/gxemul
Cloning into '/var/lib/mock/f41-build-1065784-19550/root/chroot_tmpdir/scmroot/gxemul'...
$ git fetch origin 0ec5d1d45225afbb0bda463f4a83a8bc00a1bef2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gxemul
 * [new ref]         0ec5d1d45225afbb0bda463f4a83a8bc00a1bef2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ec5d1d Eliminate use of obsolete %patchN syntax (#2283636)