Re: [PATCH 0/1] MR774: tests: Check that side effects do not happen after discard.

[Henri Verbeet (＠hverbeet)]

Note that it may be worth adding a test for derivative computation after discard as well; that's the issue that SPV_EXT_demote_to_helper_invocation addresses.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/774#note_67489