Description:
------------
Following query actually yields four lines in MySQL's command line interface (which is correct), but in PHP only one line is fetched (which is definitely wrong) and no errors appear.

MySQL version is 5.0.24, connected through socket on localhost.

No difference with MySQL or MySQLi interfaces.


Reproduce code:
---------------
The query:
SELECT mbox, pate, COUNT( DISTINCT virt.address ) AS num_alias, COUNT( DISTINCT rexp.ID ) AS num_regexp
FROM user usr
LEFT OUTER JOIN virtual virt ON ( usr.mbox = virt.owner )
LEFT OUTER JOIN virtual_regexp rexp ON ( usr.mbox = rexp.owner )
WHERE pate = 'aaaa'
GROUP BY mbox, pate

... and the common CONNECT, QUERY, MYSQL_FETCH...

Expected result:
----------------
+--------+------+-----------+------------+
| mbox   | pate | num_alias | num_regexp |
+--------+------+-----------+------------+
| aaaa   | aaaa |        24 |          2 |
| pppppp | aaaa |         7 |          1 |
| rrrrr  | aaaa |         1 |          0 |
| ssssss | aaaa |         2 |          0 |
+--------+------+-----------+------------+


Actual result:
--------------
Only one line, the first one.