From cd64bcfadc496a964ec9d9702ef6280fd1f3eb23 Mon Sep 17 00:00:00 2001
From: Youcef Mammar <tkrugg@users.noreply.github.com>
Date: Thu, 11 Apr 2019 10:42:29 +0200
Subject: [PATCH] fix(currentRefinements): don't rely on `_objectSpread`
 (#3672)

The `_objectSpread` polyfill calls `Object.keys()` under the hood which does not support anything other than objects on IE11.
---
 .../connectCurrentRefinements.js               | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/connectors/current-refinements/connectCurrentRefinements.js b/src/connectors/current-refinements/connectCurrentRefinements.js
index 60f0e860be..9253cffc8e 100644
--- a/src/connectors/current-refinements/connectCurrentRefinements.js
+++ b/src/connectors/current-refinements/connectCurrentRefinements.js
@@ -254,17 +254,23 @@ function normalizeRefinement(refinement) {
     ? `${getOperatorSymbol(refinement.operator)} ${refinement.name}`
     : refinement.name;
 
-  return {
+  const normalizedRefinement = {
     attribute: refinement.attributeName,
     type: refinement.type,
     value,
     label,
-    ...(refinement.operator !== undefined && { operator: refinement.operator }),
-    ...(refinement.count !== undefined && { count: refinement.count }),
-    ...(refinement.exhaustive !== undefined && {
-      exhaustive: refinement.exhaustive,
-    }),
   };
+
+  if (refinement.operator !== undefined) {
+    normalizedRefinement.operator = refinement.operator;
+  }
+  if (refinement.count !== undefined) {
+    normalizedRefinement.count = refinement.count;
+  }
+  if (refinement.exhaustive !== undefined) {
+    normalizedRefinement.exhaustive = refinement.exhaustive;
+  }
+  return normalizedRefinement;
 }
 
 function groupItemsByRefinements(items, helper) {