Re: [PATCH 0/1] MR2799: mshtml: Remove redundant null check from navigate_uri (Coverity).

[Gabriel Ivăncescu]

I don't think this is redundant. `FireBeforeNavigate2` could release the document object, which detaches the browser.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/2799#note_32648