php 5.3.2 is affected by a bug in the DateTime object

there is a bug in ubuntu 10.04 (both 32 and 64 bits) php5-common package.

the following code shows the problem:

<?php
$nstartDate = new DateTime();
$nendDate = new DateTime();
print("<br/>0:" . $nstartDate->format("Y-m-d")); //this prints 3 months ago

$nstartDate->sub(new DateInterval("P1M"));

print("<br/>1:" . $nstartDate->format("Y-m-d")); //this prints 3 months ago

$nstartDate->getTimestamp();
print("<br/>2:" . $nstartDate->format("Y-m-d")); //this prints 3 months ago

$nstartDate->getTimestamp();
print("<br/>3:" . $nstartDate->format("Y-m-d")); //this prints 3 months ago

?>

as you will see, each time getTimestamp() is called the date is subtracted by one month (instead of just once) no other distro seems to be affectd nor php 5.3.3.

Please update it as soon as possible. This is a serious bug in php code.