Token copy of Clone copying Volrath (who is a Bear)

This came up a few weeks ago playing Volrath, the Shapestealer EDH Shapeshifter tribal. The below screenshots show how to recreate the issue.

Use Volrath to put a M1M1 counter on Bear:

Copying Balduvian Bears with Volrath:

Play Clone and copy Volrath (who is still a bear):

Create a token copy of the Clone using Cackling Counterpart:

The token copy created is a simple 2/2 Bear, when it should have Volrath's attributes i.e. be a 7/5 and have Volrath’s copy ability like the Clone is. I have been looking into this but struggling to get anywhere with it. Issue seems to be in CreateTokenCopyTargetEffect.java with the copies of copies loop:

https://github.com/magefree/mage/blob/master/Mage/src/main/java/mage/abilities/effects/common/CreateTokenCopyTargetEffect.java#L147

Any pointers would be appreciate.