$ git clone -n https://src.fedoraproject.org/rpms/mozjs68.git /var/lib/mock/f33-build-153948-43343/root/chroot_tmpdir/scmroot/mozjs68
Cloning into '/var/lib/mock/f33-build-153948-43343/root/chroot_tmpdir/scmroot/mozjs68'...
$ git reset --hard 9b9f90c7f461f96fdf1be6a27307f9f4046a5e02
HEAD is now at 9b9f90c Rebuild with GCC 10