$ git clone -n https://src.fedoraproject.org/rpms/mozjs78.git /var/lib/mock/f33-build-579827-66207/root/chroot_tmpdir/scmroot/mozjs78
Cloning into '/var/lib/mock/f33-build-579827-66207/root/chroot_tmpdir/scmroot/mozjs78'...
$ git reset --hard 0ebbe70e819b24c37f07f51242ff943cbdf99275
HEAD is now at 0ebbe70 Release 78.9.0