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)
diff --git a/src/version.c b/src/version.c
index 9456737..8972dbd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3687,
+/**/
     3686,
 /**/
     3685,