process for creating new bugs

[Craig]

While making some (pretty minor) customizations to bugzilla, I wondered 
if these changes would be good to roll back into CVS. But, their doesn't 
seem to be any bugs for the feature I was coding. (Yes, these changes 
are to the code itself, which I realize is not a good idea.)

So, if there is potential "bug" (enhancement) is it better to discuss it 
on the list first or just to submit a bug that could be possibly be 
marked as "invalid" or "wontfix". (Which, I guess, may be good data to 
have.)

FYI, I tried to find this answer:

http://www.bugzilla.org/docs/developer.html
http://wiki.mozilla.org/Bugzilla:Developers

And didn't see anything. Are there any other pages a new person to the 
code/project should read?

TIA!
Craig