$ git clone -n https://src.fedoraproject.org/rpms/gnome-font-viewer.git /var/lib/mock/f37-build-658962-73588/root/chroot_tmpdir/scmroot/gnome-font-viewer
Cloning into '/var/lib/mock/f37-build-658962-73588/root/chroot_tmpdir/scmroot/gnome-font-viewer'...
$ git reset --hard 9b77488c76e21e57c2d3aa7d68a40251dc3babbb
HEAD is now at 9b77488 Update to 43.0