From aa592cfd73c81593c49d4f1fbb71239198f9d62b Mon Sep 17 00:00:00 2001
From: Matthias Wilhelm <matthias.wilhelm@elastic.co>
Date: Wed, 29 May 2019 13:13:52 +0200
Subject: [PATCH] Remove duplicate fields of rollup based index patterns
 (#37221) (#37307)

Rollup fields were were merged twice with other fields, this caused duplicates. Fix of a bug introduced by #28762
---
 x-pack/plugins/rollup/server/routes/api/index_patterns.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/x-pack/plugins/rollup/server/routes/api/index_patterns.js b/x-pack/plugins/rollup/server/routes/api/index_patterns.js
index 7f760ac515896..04c313f9b3ba1 100644
--- a/x-pack/plugins/rollup/server/routes/api/index_patterns.js
+++ b/x-pack/plugins/rollup/server/routes/api/index_patterns.js
@@ -69,7 +69,7 @@ export function registerFieldsForWildcardRoute(server) {
         const mergedRollupFields = mergeCapabilitiesWithFields(rollupIndexCapabilities, fieldsFromFieldCapsApi, rollupFields);
 
         return {
-          fields: [ ...rollupFields, ...mergedRollupFields ]
+          fields: mergedRollupFields
         };
       } catch(err) {
         if (isEsError(err)) {