TMC [video] tag is filtering the URL when translating to object


Here's an example:
<object style="height: 390px; width: 640px">
<param name="movie" value="http://www.youtube.com/v/FKYmxYwEfFQ&start=741s">
<embed src="http://www.youtube.com/v/FKYmxYwEfFQ&start=741s" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="640" height="360">
</object>

If I try to use the TMC [video] tag with
http://www.youtube.com/watch?v=FKYmxYwEfFQ&start=741s
it will happily accept it (and will be there when editing the post later), but the object tag generated will have the
&start=741s
stripped instead of being preserved or converted to
?start=741s




Can this be (easily) fixed in the TMC configuration?
Alternatively, is there a way to directly specify the object URL rather than having to use a video tag with youtube original url?