$ git clone -n https://src.fedoraproject.org/rpms/chromium.git /var/lib/mock/f33-build-331050-57942/root/chroot_tmpdir/scmroot/chromium
Cloning into '/var/lib/mock/f33-build-331050-57942/root/chroot_tmpdir/scmroot/chromium'...
$ git reset --hard fe5ca6e6869b458e7e4ee58b832664c7c798d962
HEAD is now at fe5ca6e local copy of xcb-proto for the python bits