updated for version 7.4.492
Problem:    In Insert mode, after inserting a newline that inserts a comment
            leader, CTRL-O moves to the right. (ZyX) Issue 57.
Solution:   Correct the condition for moving the cursor back to the NUL.
            (Christian Brabandt)
diff --git a/src/testdir/test4.in b/src/testdir/test4.in
index 4aa2fe5..b8bd9fc 100644
--- a/src/testdir/test4.in
+++ b/src/testdir/test4.in
@@ -17,6 +17,9 @@
 G?this is a
 othis should be in column 1:wq " append text without autoindent to Xxx
 G:r Xxx             " include Xxx in the current file
+:set fo+=r          " issue #57 do not move cursor on <c-o> when autoindent is set
+Go# abcdef2hi
+d0o# abcdef2hid0
 :?startstart?,$w! test.out
 :qa!
 ENDTEST