ReadConsoleInputA no longer works correctly with DBCS in Windows 8.1

There is a bug with ReadConsoleInputA on Windows 8.1. My favorite program rosh.exe no longer works correctly on it!

I first posted it to Microsoft Community. The moderator thinks this is quite technical and suggests me to post it in MSDN Forums.

http://answers.microsoft.com/en-us/windows/forum/windows8_1-tms/readconsoleinputa-no-longer-works-correctly-with/07922fe2-34bd-477c-aba8-534c663d8c62

Then I posted to MSDN Forums. And an experienced user Pavel tells me to post at the Windows 10 preview page.

http://social.msdn.microsoft.com/Forums/en-US/windowsgeneraldevelopmentissues/thread/3792a810-783a-4e36-ba82-e5c344bea8fb/

So I did it. Hope it can catch their eyes.

https://wpdev.uservoice.com/forums/266908-command-prompt/suggestions/6541083-readconsoleinputa-no-longer-works-correctly-with-d