istream-sized: Fail read() also when the stream is larger than it should have been.
istream-sized: Fail read() also when the stream is larger than it should have been.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot