Thanks for pointing out that autovivificated hash parts stay around. Reading about autovivification I always thought that those parts would appear on the fly and be gone again after they have been looked at. Since I actually might test hashes several times, I will be on the outlook for this situation.

In reply to Re^3: Test if a subhash in a referenced hash exists by Henri
in thread Test if a subhash in a referenced hash exists by Henri

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