patch 7.4.1246

Problem:    The channel functionality isn't tested.
Solution:   Add a test using a Python test server.

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1246,
 /**/
     1245,
 /**/