From 8297c0f34e4e58bd2792538bb12c94b710c8c0a5 Mon Sep 17 00:00:00 2001
From: Sven Grossmann <sven.grossmann@grafana.com>
Date: Mon, 17 Mar 2025 22:26:42 +0100
Subject: [PATCH] prom: fix sorting in `fetchLabels` (#102318)

* fix(prom): return label keys from prometheus language providers

* fix: only sort once

* fix: lose reference
---
 packages/grafana-prometheus/src/language_provider.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/grafana-prometheus/src/language_provider.ts b/packages/grafana-prometheus/src/language_provider.ts
index c75a21c83de..22c427c979b 100644
--- a/packages/grafana-prometheus/src/language_provider.ts
+++ b/packages/grafana-prometheus/src/language_provider.ts
@@ -251,7 +251,7 @@ export default class PromQlLanguageProvider extends LanguageProvider {
     const res = await this.request(url, [], searchParams, this.getDefaultCacheHeaders());
     if (Array.isArray(res)) {
       this.labelKeys = res.slice().sort();
-      return res.slice().sort();
+      return [...this.labelKeys];
     }
 
     return [];