Fix unusable units and module reexport interaction (#21097)

Test added: T21097

Should also fix #16996 (closed) and #11050 (closed).

added backport needed:9.6 backport needed:9.8 labels

added 1 commit

• 9ab2b16e - Fix unusable units and module reexport interaction (#21097 (closed))

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LGTM

assigned to @marge-bot

Could you please improve the commit message to describe what this patch does, and how that fixes the problem?

unassigned @marge-bot

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• af7f278d - Fix unusable units and module reexport interaction (#21097 (closed))

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resolved all threads

Very good commit message, thanks @hsyl20

assigned to @marge-bot

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• 973eb1b4 - Fix unusable units and module reexport interaction (#21097 (closed))

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I've added a test case for the other case I mention in the commit message.

I will attempt to batch this MR (!11618 (closed))...

Merged in cee81370

closed

mentioned in commit head.hackage@ac5c9d58

mentioned in issue #21097 (closed)

mentioned in merge request !11764 (merged)

Backported to %9.6.4 in !11764 (merged)