updated for version 7.4.280
Problem:    When using a session file the relative position of the cursor is
            not restored if there is another tab. (Nobuhiro Takasaki)
Solution:   Update w_wrow before calculating the fraction.
diff --git a/src/version.c b/src/version.c
index 80c9fe3..818a8b5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    280,
+/**/
     279,
 /**/
     278,