$ git clone -n https://src.fedoraproject.org/rpms/urh.git /var/lib/mock/f39-build-1622353-38803/root/chroot_tmpdir/scmroot/urh
Cloning into '/var/lib/mock/f39-build-1622353-38803/root/chroot_tmpdir/scmroot/urh'...
$ git fetch origin 4771d539d3e655c2dbdf5b2b11f7ea868bdab33f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/urh
 * [new ref]         4771d539d3e655c2dbdf5b2b11f7ea868bdab33f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4771d53 New version