[Bug 51100] New: ReadConsole occasionally breaks terminal input

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51100

            Bug ID: 51100
           Summary: ReadConsole occasionally breaks terminal input
           Product: Wine
           Version: 6.7
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: wine-bugs at winehq.org
          Reporter: hugh.mcmaster at outlook.com
      Distribution: ---

Created attachment 69963
  --> https://bugs.winehq.org/attachment.cgi?id=69963
Minimal test program

After running a loop reading from standard input and returning to shell (GNOME
Terminal), console input is sometimes broken. Control characters are shown on
up arrow, and input is blank, although apparently processed.

I noticed this behaviour while testing prompts during reg.exe's add or delete
operations, but I have been able to reproduce it using a minimal test case.

The bug doesn't seem to occur every time after program exit; it seems more like
every third or fourth time.

To reproduce, run the program, enter some text a few times, exit using 'quit',
then press up arrow to repeat. After a few cycles, the console should show
strange behaviour.

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