$ git clone -n https://src.fedoraproject.org/rpms/libgle.git /var/lib/mock/f41-build-1605508-24064/root/chroot_tmpdir/scmroot/libgle
Cloning into '/var/lib/mock/f41-build-1605508-24064/root/chroot_tmpdir/scmroot/libgle'...
$ git fetch origin 621b7aec4b380741a507d48d3fa1e5fdc27ceb9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgle
 * [new ref]         621b7aec4b380741a507d48d3fa1e5fdc27ceb9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 621b7ae Eliminate use of obsolete %patchN syntax (#2283636)