[issue30814] Import dotted name as alias breaks with concurrency

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset b4baacee1adc06edbe30ac7574d17a8cd168e2e0 by Serhiy Storchaka in branch 'master':
bpo-30814: Fixed a race condition when import a submodule from a package. (#2580)
https://github.com/python/cpython/commit/b4baacee1adc06edbe30ac7574d17a8cd168e2e0


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