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-rw-r--r--runtime/doc/change.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index b905f53db7..a4ff4474e6 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -765,6 +765,8 @@ When the {string} starts with "\=" it is evaluated as an expression, see
|sub-replace-expression|. You can use that for complex replacement or special
characters.
+The substitution is limited in recursion to 4 levels. *E1290*
+
Otherwise these characters in {string} have a special meaning:
magic nomagic action ~