patch 7.4.1574
Problem:    ":undo 0" does not work. (Florent Fayolle)
Solution:   Make it undo all the way. (closes #688)
diff --git a/src/version.c b/src/version.c
index c3c9323..4779f7d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1574,
+/**/
     1573,
 /**/
     1572,