[Bug] model.valid?() on PC

[Dan Rathbun]

[As of v8.0M2, this date,] The model.valid?() method is bugged on PC. If you have a reference to a model, then close it (by opening a new empty model,) the reference still points to a valid Sketchup::Model object, and calling valid?() still returns true.

If you get a reference to the new model, it will have a different object_id, than the old one. Any use of instance methods against the OLD model object (weirdly,) return references to the NEW model object's child objects. (such as active_entities, active_layer, etc.)

So, on PC, you cannot use valid?() to test model objects (in order to maintain a collection of models for a multi-model plugin.) On PC, you must test for:
old_model.object_id != Sketchup.active_model.object_id
.. and if true, delete the old_model reference from your collection Array, Hash, etc

[thomthom]

And this behaviour is new to M2? I thought it acted like this before as well...

[Dan Rathbun]

I do not know if it is new. I just ran across it. Could not find a bug report, so I filed one.

This post is just a "head's up" notice.