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.

src/testdir/test68.in

@@ -61,6 +61,20 @@ ENDTEST
 # 1 a
 }
 
+STARTTEST
+/^{/+3
+:set tw=5 fo=t2a si
+i  A_
+ENDTEST
+
+{
+
+  x a
+  b
+ c
+
+}
+
 STARTTEST
 /^{/+1
 :set tw=5 fo=qn comments=:#

src/testdir/test68.ok

@@ -42,6 +42,15 @@ a b
 }
 
 
+{
+
+  x a
+    b_
+    c
+
+}
+
+
 {
 # 1 a
 #   b