$ git clone -n https://src.fedoraproject.org/rpms/mozjs68.git /var/lib/mock/f33-build-281126-51704/root/chroot_tmpdir/scmroot/mozjs68
Cloning into '/var/lib/mock/f33-build-281126-51704/root/chroot_tmpdir/scmroot/mozjs68'...
$ git reset --hard 933be9eb615b9ceca212001abda2e5b2c2161056
HEAD is now at 933be9e Release 68.9.0