Fix port conflict 64324 used in bug51056.phpt

Fix GH-10406: fgets on a redis socket connection fails on PHP 8.3

This is an alternative implementation for GH-10406 that resets the
has_buffered_data flag after finishing stream read so

Fix GH-10406: fgets on a redis socket connection fails on PHP 8.3

This is an alternative implementation for GH-10406 that resets the
has_buffered_data flag after finishing stream read so it does not impact
other ops->read use like for example php_stream_get_line.

Closes GH-11421

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