There is stuff like this in the fileouts and in the MCZ source.st

!XXXrView methodsFor: 'as yet unclassified' stamp: 'PhilippeBack 9/28/2013 00:25'!

! !

So, nothing in the source of the method.

Don't know how this occured, maybe refactorings 

normally not.

This is the first time I hear that problem. May be an interaction with an external package doing strange thing with internals?

Removing these things allow me to filein the source.st 

Phil