Deadpool #900 might be in wrong volume

The first issue of Deadpool Team-Up (issue #900) is in the Deadpool volume instead of its own volume. The first issue is called "Deadpool", but issue #2 (which is #899, they count backwards) will be called Deadpool Team-Up. This #900 issue is like issue #0. Issue #899 will be issue #1 of the Deadpool Team-Up series.
 
Should issue #900 be listed along side the future #899, #898, etc. or should it stay in the other volume?
  
#900
http://www.comicvine.com/deadpool-900th-commemorative-issue/37-176023/ 
 
#899
  http://marvel.com/catalog/?id=13270 
 
#898
  http://marvel.com/catalog/?id=13569

This volume is in the right place. It is part of the current Deadpool volume.

Marvel and voluming is not a fun topic to tackle. They seem to have lost all of their senses in that regard.

Deadpool Team-Up is a new ongoing series.  Although the numbering counts down from Deadpool 900, it is a very different series.  At first it seemed that Marvel were poking fun at themselves for renumbering volumes (like Incredible Hulk, Daredevil & X-Factor).  But now they just seem to be losing the plot completely.

I wonder if we should enter this like Countdown To Final Crisis, where the first issue would be #1 here but we'd add #899 in the title.  I dunno...

Maybe you can convience the Comic-Vine programmers to add a field to the Comic Volume table to set allow rendering either ascending or descending?  :)
 
And just for further clarification on opening topic, the indexia did say "Deadpool" on the #900 issue. So it was in the correct location to begin with. I was just a bit confused over where the official volume name came from. I've read over the debate thread (masthead/cover vs indexia vs everything else).

I do not think that it is part of the current deadpool volume. This is part of the "teamup" volume.

@HaloKing343, that's what I initially thought as well - because of the numbering. But I think this is more of a Deadpool Annual type issue. I think the Team-Up team borrowed the numbering system from the #900 idea and ran with it as a different volume. Although, I do think it would be easier to find it next to #899, #898, etc. but technically, I'd say it should probably go wherever the indexia states.

I have a feeling Deadpool Team-Up would be its own volume.  I think Deadpool just got hold of some time travel device and we're really seeing issues from the future.