$ git clone -n https://src.fedoraproject.org/rpms/python-xkbregistry.git /var/lib/mock/f40-build-783864-133120/root/chroot_tmpdir/scmroot/python-xkbregistry
Cloning into '/var/lib/mock/f40-build-783864-133120/root/chroot_tmpdir/scmroot/python-xkbregistry'...
$ git fetch origin 2b4dab13ced169f9d93510ae038ec9da0b986e09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-xkbregistry
 * [new ref]         2b4dab13ced169f9d93510ae038ec9da0b986e09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b4dab1 python-xkbregistry v0.3