cygwin 1.3.21 breaks ssh terminal interaction

[Loewis Martin von]

After upgrading to the latest cygwin, ssh won't ask me 
for a password anymore in the terminal window that WinCVS
1.3.12.1 opens. I have confirmed that this is the cause
of the problem by reverting cygwin to 1.3.20.

The same happens when I run WinCVS' cvs.exe in a terminal
window.

As a result, ssh cannot log into the remote machine, and
WinCVS cannt access the remote repository.

Is this a known problem?

Regards,
Martin

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