patch 8.2.3706: text property highlighting is used on Tab

Problem:    Text property highlighting is used on Tab.
Solution:   Only set in_linebreak when not on a Tab. (closes #9242)
diff --git a/src/version.c b/src/version.c
index 570cd21..601055a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3706,
+/**/
     3705,
 /**/
     3704,