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Regexp match bug in 5.0.8

X-seq: zsh-workers 36363
From: disarmer <disarmer.mk@xxxxxxxxx>
To: zsh-workers@xxxxxxx
Subject: Regexp match bug in 5.0.8
Date: Tue, 1 Sep 2015 13:09:47 +0300
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Hello!
It seems I found bug in zsh 5.0.8. If I run this code, shell goes to infinite cycle:

[[ "Р#" =~ '#' ]] 

It breaks only with this letter («Р» is "CYRILLIC CAPITAL LETTER ER", 0x0420). It seems older versions(at least 5.0.5) and 5.1 are not vulnerable.
Locale is ru_RU.UTF-8.

Follow-Ups:
- Re: Regexp match bug in 5.0.8
  - From: Peter Stephenson

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