Description:
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The function imagefilledarc(...) is used to draw partial ellipse.
In PHP 5.2.3, when the arc start angle is the same that the arc end angle, the function draws an empty ellipse.

In the same condition, but using PHP5.2.4, the function draws a full ellipse.


Reproduce code:
---------------
<?php

// create image
$image = imagecreatetruecolor(100, 100);

// allocate some solors
$red = imagecolorallocate($image, 0xFF, 0x00, 0x00);


//draw the ellipse
imagefilledarc($image, 50, 50, 100, 50, 75, 75 , $red, IMG_ARC_PIE);


// flush image
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?> 


Expected result:
----------------
Like in PHP 5.2.3,  the code must draw nothing (an empty ellipse) 

Actual result:
--------------
The code draws a red ellipse.