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-rw-r--r--Doc/Zsh/expn.yo3
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo
index b0476673b..191066f52 100644
--- a/Doc/Zsh/expn.yo
+++ b/Doc/Zsh/expn.yo
@@ -1214,7 +1214,8 @@ parenthesised group, and so on.  These arrays are not otherwise special to
 the shell.  The indices use the same convention as does parameter
 substitution, so that elements of tt($mend) and tt($mbegin) may be used in
 subscripts; the tt(KSH_ARRAYS) option is respected.  Sets of globbing flags
-are not considered parenthesised groups.
+are not considered parenthesised groups; only the first nine active
+parentheses can be referenced.
 
 For example,