[issue42426] IDLE: Fix reporting RE error in searchengine

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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keywords: +patch
pull_requests: +22339
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/23447

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42426>
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