Wikimedia Bugzilla is closed!

File:Doppler radar cos factor.svg looks fine in IE9 and Firefox but is not properly converted to png.

stroke-dasharray is used to draw an arc (section of a circle) and to mark initial parts of several straight lines.

<circle cx="70" cy="140" r="31" fill="none" stroke-dasharray="0 170.4 33 0" />
A full circle is drawn instead of drawing only the last 1/8 of the circle (315° to 360°, after a zero-length dash and a gap of 7/8 of the circumference). 

<path d="M 10  10L200 10" stroke-dasharray="61.6 333" />
There are many dashes and gaps of equal lengths instead of only one dash on the beginning of the line and a subsequent gap beyond the end of the line.

#5110 is also on stroke-dasharray, closed as FIXED. Obviously, testing is carelessly neglected.