From 5af953cd2e4faaef071c34341aa0d74a6b53cb99 Mon Sep 17 00:00:00 2001
From: briandennis <briandennis321@gmail.com>
Date: Tue, 6 Feb 2018 14:04:40 -0600
Subject: [PATCH] remove empty state values so as not to override defaults

---
 lib/routing.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/routing.js b/lib/routing.js
index af879e2..3dc8f9b 100644
--- a/lib/routing.js
+++ b/lib/routing.js
@@ -44,7 +44,16 @@ const keysToQuery = keys =>
     .map(key => `${key}=${keys[key]}`)
     .join('&')}`
 
-export const getQueryStringState = query => mapper.map(mappings, query)
+export const getQueryStringState = query => {
+  const state = mapper.map(mappings, query)
+
+  Object.keys(state).forEach(key => {
+    if (state[key] === '') state[key] = undefined
+  })
+
+  return state
+}
+
 export const updateQueryString = state =>
   history.replace({
     search: encodeURI(keysToQuery(mapper.map(reverseMappings, state)))