[ast-users] Substitution expansion no longer re-evaluates replacement.

[Dan Douglas]

Hi, Since sometime after 93u, "${x[@]/pat/str}" no longer re-evaluates 
expansions in the replacement string for multi-word expansions.

 $ ksh -c 'x=({1..5}); printf %s\\n 
"${x[*]/+([[:digit:]])/$((.sh.match[1]*2))}" "${.sh.version}"'
2 4 6 8 10
Version JM 93u 2011-02-08
 $ ksh+ -c 'x=({1..5}); printf %s\\n 
"${x[*]/+([[:digit:]])/$((.sh.match[1]*2))}" "${.sh.version}"'
0 0 0 0 0
Version AJM 93v- 2013-02-13
-- 
Dan Douglas
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