updated for version 7.4.210
Problem:    Visual block mode plus virtual edit doesn't work well with tabs.
            (Liang Li)
Solution:   Take coladd into account. (Christian Brabandt)
diff --git a/src/ops.c b/src/ops.c
index 4517e42..cd1f29e 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -2646,7 +2646,15 @@
 	if (oap->start.lnum == curbuf->b_op_start_orig.lnum && !bd.is_MAX)
 	{
 	    if (oap->op_type == OP_INSERT
-		    && oap->start.col != curbuf->b_op_start_orig.col)
+		    && oap->start.col
+#ifdef FEAT_VIRTUALEDIT
+			    + oap->start.coladd
+#endif
+			!= curbuf->b_op_start_orig.col
+#ifdef FEAT_VIRTUALEDIT
+			    + curbuf->b_op_start_orig.coladd
+#endif
+			)
 	    {
 		oap->start.col = curbuf->b_op_start_orig.col;
 		pre_textlen -= getviscol2(oap->start.col, oap->start.coladd)
@@ -2654,7 +2662,15 @@
 		oap->start_vcol = getviscol2(oap->start.col, oap->start.coladd);
 	    }
 	    else if (oap->op_type == OP_APPEND
-		    && oap->end.col >= curbuf->b_op_start_orig.col)
+		      && oap->end.col
+#ifdef FEAT_VIRTUALEDIT
+			    + oap->end.coladd
+#endif
+			>= curbuf->b_op_start_orig.col
+#ifdef FEAT_VIRTUALEDIT
+			    + curbuf->b_op_start_orig.coladd
+#endif
+			)
 	    {
 		oap->start.col = curbuf->b_op_start_orig.col;
 		/* reset pre_textlen to the value of OP_INSERT */
diff --git a/src/testdir/test39.in b/src/testdir/test39.in
index 8f45f47..c1e1cc4 100644
--- a/src/testdir/test39.in
+++ b/src/testdir/test39.in
Binary files differ
diff --git a/src/testdir/test39.ok b/src/testdir/test39.ok
index b459355..ef7a2c6 100644
--- a/src/testdir/test39.ok
+++ b/src/testdir/test39.ok
Binary files differ
diff --git a/src/version.c b/src/version.c
index 65fe162..3b1ccd9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    210,
+/**/
     209,
 /**/
     208,