[BUG][FIX]UndefinedObject(Object)>>doesNotUnderstand: #at:ifAbsent:

[marcus at ira.uka.de]

Ned writes:

I'd prefer to use Hans-Martin's fix for this problem, since it doesn't
kill the display of the class comment in the Package Pane Browser (and
it touches less methods)

md: This needs to be converted to a real changeset