Invalidate the text edit handler on selection events

chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
index 87aea0970518a29e0788ea851c7afbbffb9b50fd..5424dec0c505a37969205969d6438439d0e40187 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
@@ -428,6 +428,11 @@ DesktopAutomationHandler.prototype = {
    * @param {!AutomationEvent} evt
    */
   onSelection: function(evt) {
+    // Invalidate any previous editable text handler state since some nodes,
+    // like menuitems, can receive selection while focus remains on an editable
+    // leading to braille output routing to the editable.
+    this.textEditHandler_ = null;
+
     chrome.automation.getFocus(function(focus) {
       // Desktop tabs get "selection" when there's a focused webview during tab
       // switching.