patch 7.4.1278
Problem:    When jsonencode() fails it still returns something.
Solution:   Return an empty string on failure.
diff --git a/src/version.c b/src/version.c
index f979949..00b7176 100644
--- a/src/version.c
+++ b/src/version.c
@@ -748,6 +748,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1278,
+/**/
     1277,
 /**/
     1276,