This is a simple file showing the creation of a new mesh and the proper replacement of both the graphics and physics mesh.

Can I get an update on what's still missing?

Added some comments documenting the additions.

The already previously made changes applied again.

I updated everything so the diff is relative to master so hopefully changing the diff is easier now.

Ok so my local git diff shows something different than the diff I have here, not really related changes I think, it's just a lot longer. What can I do about that? I mean if it's unrelated you'll probably not want it in the patch.

Fair point I'll get to it on the weekend.

I updated the suggested changes (finally).

Can I just hit "done" to accept the suggested change with spaces?

removed some useless comments

Nvm it's fixed in 2.75

By "normal form" I mean this one.

Ok that'll work for me. But It would obviously be nice to have a place to store that kind of data without having to do any conversions.

I figured I could write an update:

New and running in 2.71. I changed it so that it's only available from the "mesh" menu in edit mode now.

That would be great. There are some things to finalize, obviously, but I have time in the next few days to work on that. Glad someone looked at it. :)

So I'm set up to try and fix this, but it's my first attempt at bug fixing. So I'd be happy for any advice you have for me.
I found the ReinstancePhysicsShape function in the CcdPhyicsController.cpp and shapeinfo->updatemesh in the comments above it. Is this what's being used by the python function?

Ok I didn't know that.

I can confirm that it's working for me on an official release so I too think this can be closed.