From f931838a6a43f6aaae0110c6090812b57bdad1d0 Mon Sep 17 00:00:00 2001
From: Maxime Beauchemin <maximebeauchemin@gmail.com>
Date: Thu, 23 Feb 2017 08:33:26 -0800
Subject: [PATCH] Fixing exploring a table

---
 superset/assets/javascripts/explorev2/stores/store.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/superset/assets/javascripts/explorev2/stores/store.js b/superset/assets/javascripts/explorev2/stores/store.js
index 28c50b73a5ae..d0e31c050898 100644
--- a/superset/assets/javascripts/explorev2/stores/store.js
+++ b/superset/assets/javascripts/explorev2/stores/store.js
@@ -55,6 +55,9 @@ export function getControlsState(state, form_data) {
     }
     // Removing invalid filters that point to a now inexisting column
     if (control.type === 'FilterControl' && control.choices) {
+      if (!formData[k]) {
+        formData[k] = [];
+      }
       const choiceValues = control.choices.map(c => c[0]);
       formData[k] = formData[k].filter(flt => choiceValues.indexOf(flt.col) >= 0);
     }