patch 7.4.1873

Problem:    When a callback adds a timer the GUI doesn't use it until later.
            (Ramel Eshed)
Solution:   Return early if a callback adds a timer.

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1873,
 /**/
     1872,
 /**/