patch 7.4.1293

Problem:    Sometimes a channel may hang waiting for a message that was
            already discarded. (Ken Takata)
Solution:   Store the ID of the message blocking on in the channel.

src/version.c

@@ -747,6 +747,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1293,
 /**/
     1292,
 /**/