updated for version 7.4.052
Problem:    With 'fo' set to "a2" inserting a space in the first column may
            cause the cursor to jump to the previous line.
Solution:   Handle the case when there is no comment leader properly. (Tor
            Perkins)  Also fix that cursor is in the wrong place when spaces
            get replaced with a Tab.
diff --git a/src/testdir/test68.ok b/src/testdir/test68.ok
index 7ec93e6..b3726a0 100644
--- a/src/testdir/test68.ok
+++ b/src/testdir/test68.ok
@@ -43,6 +43,15 @@
 
 
 {
+
+  x a
+    b_
+    c
+
+}
+
+
+{
 # 1 a
 #   b
 }