[PATCH v8 0/6] MR6004: comctl32: A NULL string fix.

[Aida Jonikienė (＠DodoGTA)]

--
  v8: user32/edit: Add some WM_ASKCBFORMATNAME tests.
      user32/tests: Add tests for NULL strings with edit control GETTEXT message.
      comctl32/tests: Add tests for NULL strings with edit control GETTEXT message.
      user32: Correctly handle NULL string in GETTEXT/CBFORMAT AtoW wrapper.

https://gitlab.winehq.org/wine/wine/-/merge_requests/6004