patch 8.2.3687: blockwise insert does not handle autoindent properly

Problem:    Blockwise insert does not handle autoindent properly when tab is
            inserted.
Solution:   Adjust text column for indent before computing column.
            (closes #9229)

src/version.c

@@ -757,6 +757,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3687,
 /**/
     3686,
 /**/