$ git clone -n https://src.fedoraproject.org/rpms/mozjs78.git /var/lib/mock/f33-build-336278-58401/root/chroot_tmpdir/scmroot/mozjs78
Cloning into '/var/lib/mock/f33-build-336278-58401/root/chroot_tmpdir/scmroot/mozjs78'...
$ git reset --hard 278314969f87bc0133a0a54ce0bc2e51e66e5241
HEAD is now at 2783149 Release 78.2.0 - Sources