stroke-dasharray not converted into XML attribute

Hi,

When I save this Inkscape SVG rectangle:

<rect style="fill:url(#linearGradient2982);fill-opacity:1;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:3.5999999;stroke-opacity:1;stroke-dasharray:1, 1;stroke-dashoffset:0" id="rect2974" height="294.29" width="314.29" y="415.22" x="108.57" />

as Optimized SVG (with Scour), I get the following code:

<rect id="rect2974" stroke-linejoin="miter" style="stroke-dasharray:1,1;" stroke-dashoffset="0" height="294.29" width="314.29" stroke="#000" stroke-linecap="round" stroke-miterlimit="3.6" y="415.22" x="108.57" stroke-width="1" fill="url(#linearGradient2982)"/>

All styles are converted to XML attributes, except "stroke-dasharray".
Probably not too critical.