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bug#34852: 26.1; seq-intersection ignores nil as element

From: Michael Heerdegen
Subject: bug#34852: 26.1; seq-intersection ignores nil as element
Date: Fri, 15 Mar 2019 13:26:18 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) 
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:

> The test doesn't need to be an equality test.

The doc doesn't specify in which order the args are delivered to the
TESTFN, so the behavior is unspecified.  For asymmetric TESTFNs I would
rather go with `seq-some'.


Michael.
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