dot mxo crash

Stumbled on the following by accidentally mistyping. Seems like it should produce a harmless "no such object" rather than a crash. Just checked and that is what happens in 4.6.3.

Steps to reproduce:
1) create a new object box
2) type in ".mxo"
3) hit return
4) crash

Max 5.0.2
Mac OS X 10.5.4
MacBook Pro
2 GHz Intel Core Duo
1 GB SDRAM

Finally diving into Max 5 and plugging back into the forums after a few months away. Great fun. I’ve missed you guys and gals.