$ git clone -n https://src.fedoraproject.org/rpms/doxygen.git /var/lib/mock/f41-build-1018478-17947/root/chroot_tmpdir/scmroot/doxygen
Cloning into '/var/lib/mock/f41-build-1018478-17947/root/chroot_tmpdir/scmroot/doxygen'...
$ git fetch origin fd2734b8b7196e794e2a640ce70f8252434ed890:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/doxygen
 * [new ref]         fd2734b8b7196e794e2a640ce70f8252434ed890 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd2734b fixed rhbz#2292250, update license