http://bugs.winehq.org/show_bug.cgi?id=13886
--- Comment #3 from Dylan Smith dylan.ah.smith@gmail.com 2008-06-13 14:53:31 --- The issue would not be noticeable in Notepad because when the window receives a WM_SETFOCUS event, it will immediately set the focus on the edit control. Wordpad does not do this, so the bug is visible.
Maybe I am confused though, because I tried taking out the line that changed focus to the edit control in notepad's source, and then cross compiled it for Windows. After that the issue was noticeable in Windows.
I will completely rebuild everything for the newest release candidate and then do some more testing.