That is why you shouldn't use the Indirect notation.
And not because of the reasons pointed out since way back by Perl illuminators like Tom Christiansen and Mark-Jason Dominus, some of those having found its way into the documentation?

Your AUTOLOAD example is just a special case of the more fundamental problems mentioned in perldoc perlobj - the manual page that recommends:

The "->" notation suffers from neither of these disturbing ambiguities, so we recommend you use it exclusively.
Emphasis not mine.

In reply to Re: Why you shouldn't use the Indirect notation with AUTOLOAD by Anonymous Monk
in thread Why you shouldn't use the Indirect notation with AUTOLOAD by dragonchild

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