[issue30642] Fix leaks in idlelib

[Terry J. Reedy]

Terry J. Reedy added the comment:


New changeset b070fd275b68df5c5ba9f6f43197b8d7066f0b18 by terryjreedy (mlouielu) in branch 'master':
bpo-30642: IDLE: Fix test_query refleak (#2147)
https://github.com/python/cpython/commit/b070fd275b68df5c5ba9f6f43197b8d7066f0b18


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<http://bugs.python.org/issue30642>
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