From 256bca8ed971ea46a55e4caa45f6fe44ccf9405e Mon Sep 17 00:00:00 2001
From: Jonathan Labreuille <jonathan@mailpoet.com>
Date: Tue, 26 Apr 2016 12:19:39 +0200
Subject: [PATCH] Fix selection.jsx by adding a check before trying to destroy
 the select2 instance

---
 assets/js/src/form/fields/selection.jsx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/assets/js/src/form/fields/selection.jsx b/assets/js/src/form/fields/selection.jsx
index 04f01a2e39..62abc180e0 100644
--- a/assets/js/src/form/fields/selection.jsx
+++ b/assets/js/src/form/fields/selection.jsx
@@ -33,6 +33,14 @@ function(
       }
     },
     componentWillUnmount: function() {
+      if(
+          !this.props.field.multiple
+          || this.state.initialized === false
+          || this.refs.select === undefined
+        ) {
+        return;
+      }
+
       jQuery('#'+this.refs.select.id).select2('destroy');
     },
     setupSelect2: function() {