Problem with TClass::GetListOfAllPublicMethods() in python

[dpiparo]

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Description

From ROOT-9699

Reproducer

When trying to access the list of public methods of a class in python I observe

RuntimeWarning: failed offset calculation between TList and TViewPubFunctions

For me this can simply be reproduced with

python3 -c "import ROOT; ROOT.TObject.Class().GetListOfAllPublicMethods()"

ROOT version

master on Mac and 6.32 on Alma9

Installation method

from sources

Operating system

all, I fear.

Additional context

No response