rc.12-v0.21.7 failed 'Submit the verified Store package' with
StoreError: unreadable submission status: ''.
store.submit parsed 'msstore submission status' as JSON. For a packaged
(MSIX) app that command prints a Spectre markup line ('Submission Status =
...') plus status tables, never JSON, and prints nothing when no submission
is pending (msstore-cli Commands/Submission/StatusCommand.cs). The first real
Store submission therefore always failed. 'msstore submission get' serializes
the submission as JSON (GetCommand.cs) and is already what submit reads after
the upload, so the in-flight check reads that instead.
The test fake now answers 'status' the way the CLI does; with it, main fails
5 tests with the production error.
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