Invoking resolve_initial_references with either an empty string or invalid object id in post_init is getting into an infinite loop. I've attached the test case to reproduce the bug.

Mark is able to reproduce the bug and ha acknowledged it in a separate email.

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###@###.### 2001-08-16

- Fix verified ok
  1) with build: j2sdk-1_4_0-beta_refresh-bin-b76-solsparc-15_aug_2001
  2) with test: /tests/product/pi/bugs/bug_4373080

- I am using muthu's id to verify & close the bugs since i didn't get the id yet.
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