https://bugs.winehq.org/show_bug.cgi?id=47391
--- Comment #3 from Matteo Bruni matteo.mystral@gmail.com --- Nice job! Notice that usually patches aren't picked up from Bugzilla (see https://wiki.winehq.org/SubmittingPatches).
WRT the patch itself, it probably needs some tests to be acceptable for submission. You can probably extend or tweak existing tests in ddraw..d3d11 to verify that any non-0 value for the depth test state means "enabled".