$ git clone -n https://src.fedoraproject.org/rpms/doxygen.git /var/lib/mock/f33-build-283097-51823/root/chroot_tmpdir/scmroot/doxygen
Cloning into '/var/lib/mock/f33-build-283097-51823/root/chroot_tmpdir/scmroot/doxygen'...
$ git reset --hard 551b0a2a0e20efe9515bc788d7da4f4c21d02a50
HEAD is now at 551b0a2 fixed link issue against new clang