From 5eed28ce9ef1daa2b38d15094425f82e0032d62d Mon Sep 17 00:00:00 2001
From: Catouse <catouse@gmail.com>
Date: Thu, 30 May 2019 20:55:30 +0800
Subject: [PATCH]  * add deselected param to change event for chosen single
 select control.

---
 src/js/chosen.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/js/chosen.js b/src/js/chosen.js
index ea41c2d2a..534118274 100644
--- a/src/js/chosen.js
+++ b/src/js/chosen.js
@@ -1113,12 +1113,18 @@ MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
         };
 
         Chosen.prototype.results_reset = function() {
+            var oldValue = this.form_field_jq.val();
             this.reset_single_select_options();
             this.form_field.options[0].selected = true;
             this.single_set_selected_text();
             this.show_search_field_default();
             this.results_reset_cleanup();
-            this.form_field_jq.trigger("change");
+            var newValue = this.form_field_jq.val();
+            var changeData = {selected: newValue};
+            if (oldValue !== newValue && !newValue.length) {
+                changeData.deselected = oldValue;
+            }
+            this.form_field_jq.trigger("change", changeData);
             if(this.active_field) {
                 return this.results_hide();
             }
-- 
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