@j4yk commented on this pull request.
@@ -625,6 +625,10 @@ MainWndProcW(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
case WM_KILLFOCUS: fHasFocus = 0; return DefWindowProcW(hwnd,message,wParam,lParam); + + case WM_TIMECHANGE: + resyncSystemTime(); +
For what it is worth, wine has no default reaction to WM_TIMECHANGE https://github.com/wine-mirror/wine/blob/master/dlls/user32/defwnd.c
One might speculate whether Windows will in the future at some point have a meaningful default reaction to that message (which would speak for DefWindowProc). I doubt it will (which speaks for break).
But anyway I would not keep the fall-through because otherwise the next person to add a message here might overlook it and introduce unexpected behavior whenever WM_TIMECHANGE comes in.