"make check" failure in public-submodule-commit

[Stefano Lattarini]

>From latest master:

  $ make check
    GEN      public-submodule-commit
  fatal: Not a valid object name origin
  /usr/local/bleeding/libexec/git-core/git-submodule: line 445: \
    test: daf7f8c02242c535d596231e2f655109b97fa2bc: unary operator expected
  Stopping at 'gnulib'; script returned non-zero status.
  maint.mk: found non-public submodule commit
  maint.mk:1391: recipe for target 'public-submodule-commit' failed
  make: *** [public-submodule-commit] Error 1

I haven't investigated any further.  Can you reproduce the issue?

Regards,
  Stefano