updated for version 7.3.1292

Problem:    Possibly using invalid pointer when searcing for window. (Raichoo)
Solution:   Use "firstwin" instead of "tp_firstwin" for current tab.

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1292,
 /**/
     1291,
 /**/