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diff --git a/src/testdir/test46.in b/src/testdir/test46.in
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+Tests for multi-line regexps with ":s". vim: set ft=vim :
+
+STARTTEST
+:" test if replacing a line break works with a back reference
+:/^1/,/^2/s/\n\(.\)/ \1/
+:" test if inserting a line break works with a back reference
+:/^3/,/^4/s/\(.\)$/\r\1/
+:" test if replacing a line break with another line break works
+:/^5/,/^6/s/\(\_d\{3}\)/x\1x/
+:/^1/,$w! test.out
+:qa!
+ENDTEST
+
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