Description:
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getimagesize returns always 1 as width and 0 as height for WBMP pictures. problem occurs on 4.3.8 and 4.3.9 as well.
WBMP/ICO can hold multiple frames with different sizes.


Reproduce code:
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$imageinfo = getimagesize('favicon.ico');
echo "width:{$imageinfo[0]}<br>";
echo "height:{$imageinfo[1]}<br>";
echo "imagetype:{$imageinfo[2]}<br>";
echo "to show that the size is wrong:<br>";
echo "<img src=\"favicon.ico\">";

Expected result:
----------------
width:16
height:16
imagetype:15
to show that the size is wrong:
IMAGE

Actual result:
--------------
width:1
height:0
imagetype:15
to show that the size is wrong:
IMAGE