$ git clone -n https://src.fedoraproject.org/rpms/firefox.git /var/lib/mock/f33-build-195463-47244/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/f33-build-195463-47244/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard cb1655cd55c2837ce98fd7ec62e577c833cfeef9
HEAD is now at cb1655c Added va-api patches