[orca] Handle focus: event floods resulting from rapid selection changes

[Joanmarie Diggs <joanied src gnome org>]

commit 22c2b13656a05b154b8e74307270c36e8535861e
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Thu Jun 28 21:20:53 2018 -0400

    Handle focus: event floods resulting from rapid selection changes

 src/orca/script.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/orca/script.py b/src/orca/script.py
index 60454704d..a81a5456a 100644
--- a/src/orca/script.py
+++ b/src/orca/script.py
@@ -347,7 +347,7 @@ class Script:
         if not cachedEvent or cachedEvent == event:
             return False
 
-        focus    = ["object:state-changed:focused"]
+        focus    = ["object:state-changed:focused", "focus:"]
         typing   = ["object:text-changed:insert", "object:text-changed:delete"]
         arrowing = ["object:text-caret-moved", "object:text-selection-changed",
                     "object:selection-changed", "object:active-descendant-changed"]