$ git clone -n https://src.fedoraproject.org/rpms/firefox.git /var/lib/mock/f33-build-530489-64733/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/f33-build-530489-64733/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard fd235e9f29ca9bc8c010e6c5819cca855097c659
HEAD is now at fd235e9 Merge branch 'master' into f33