If I remembered right, the suffix was add when I exported the image from CorelDraw as an .svg, when I had duplicated ID name. So I thought I would see if my brain was still working... "no comment please" 
and test it out. Below I entered id="subpart3" three times, you can see how it added the suffix to the last two. Although, I don't have any idea why NoodleDriver's file was like that, but I do know CorelDraw does it this way. All programs are different, I am not familiar with Inkscape and FZ has some weird idiosyncrasies...
id="subpart3"
id="subpart3_0"
id="subpart3_1"Computers don't make mistakes... People do... It just takes computers to really screw things up...
