[issue32108] configparser bug: section is emptied if you assign a section to itself

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

PR 4607 doesn't look a correct solution to me. I don't know a precedence of calling deepcopy() for a value in __setitem__(). deepcopy() is too heavy, calling it can slow down normal cases. Using deepcopy likely means a bad design.

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nosy: +serhiy.storchaka

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<https://bugs.python.org/issue32108>
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