$ git clone -n https://src.fedoraproject.org/rpms/libsolv.git /var/lib/mock/f41-build-side-1-2647703-27311/root/chroot_tmpdir/scmroot/libsolv
Cloning into '/var/lib/mock/f41-build-side-1-2647703-27311/root/chroot_tmpdir/scmroot/libsolv'...
$ git fetch origin 6d0269fa81ce037905de27d6c4df9e4ef2255732:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsolv
 * [new ref]         6d0269fa81ce037905de27d6c4df9e4ef2255732 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d0269f Update to 0.7.30