Created attachment 94359 [details]
Test case

Test case:

<?php
$test=array(0);
echo $test;
?>

Steps to reproduce:

1. Place breakpoint in attached index.php on line 'echo $test' (included above)
2. Run debugger - the execution will stop on the breakpoint
3. Switch to Variables window and inspect contents of $test variable
4. Variables window shows multiple '0' items in $test and number of items is constantly growing:

<> test           array
       <> [0]      integer      0 
       <> [0]      integer      0 
       <> [0]      integer      0 
        ...