[Bug 43630] Altium Designer Installer - Richedit control shows rtf code instead of text

https://bugs.winehq.org/show_bug.cgi?id=43630

--- Comment #9 from Fabian Maurer  ---
Sent in a patch here: https://source.winehq.org/patches/data/153776

Short Explanation:
The program uses EM_STREAMIN to send the text to the richedit control. Problem
is, sometimes (randomly, AFAIK) it sends a buffer with a terminating \0. Wine
interprets this as EOF, while on windows it just results in a space.
Program notices that the parsing failed, and adds the whole rtf markup as plain
text.