errexit and (Z)ERR trap regression

[Martijn Dekker <martijn@inlv.org>]

Two manifestations of the same bug in the current dev version:

     $ zsh -e -c 'true && false; echo NOT REACHED'         # no output; correct
     $ zsh -c 'true && (set -e; false; echo NOT REACHED)'  # incorrect output
     NOT REACHED

and

     $ zsh -c 'trap "echo Trapped!" ERR; true && false'     # correct output
     Trapped!
     $ zsh -c 'true && (trap "print Trapped!" ERR; false)'  # no output; bug

The -e option and the (Z)ERR trap should be disabled for the left hand side of 
&&/|| but not for the right hand side (or, as POSIX puts it, set -e should be 
disabled for "any command of an AND-OR list other than the last"). zsh 5.8.x 
works correctly.

A 'git bisect' revealed that this bug was introduced in:

commit 259f1e944b96715fda25f7ba227da05bdb7e600f
Author: Philippe Altherr <philippe.altherr@gmail.com>
Date:   Sat Dec 3 21:03:36 2022 -0800

     51071: fix ERR_RETURN for functions in conditional statements

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