Yes, that is the point. The warning "Use of freed value in iteration" is great for catching bugs, but it can easily fail to catch one if the memory location of the deleted item is replaced with something else. If that something else happens to be the same type as the original item, then it could be a really insidious bug.
"but if you change the loop to iterate over @values or the keys of $hr3 then the issue disappears"

Yeah, iterating over @values would be really bad if you wanted to ensure you are only dealing with things defined in $hr3. Iterating over the keys of %$hr3 is definitely the safer way to go. That way when $hr3->{$key} is accessed you'll get a warning if it doesn't exist.

In reply to Re^4: Use of freed value in iteration by Danny
in thread Use of freed value in iteration by js1

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