Re: [PATCH v3 0/2] MR6443: comdlg32: allow entering a filter in the itemdlg file name field

[Charlotte Pabst (＠CharlottePabst)]

Added tests. The tests revealed that the current_filter file extension adding logic wasn't being done for open dialogs yet, so I fixed that as well.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6443#note_81660