From 35633b756d5ece29f0fa055c082246442826bbaf Mon Sep 17 00:00:00 2001
From: Ashley Harrison <ashley.harrison@grafana.com>
Date: Mon, 8 Dec 2025 12:26:02 +0000
Subject: [PATCH] temporary flushSync to fix some tests

---
 .../components/metrics-browser/useMetricsLabelsValues.ts    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/grafana-prometheus/src/components/metrics-browser/useMetricsLabelsValues.ts b/packages/grafana-prometheus/src/components/metrics-browser/useMetricsLabelsValues.ts
index 6298ba41fe6..981335ef3bc 100644
--- a/packages/grafana-prometheus/src/components/metrics-browser/useMetricsLabelsValues.ts
+++ b/packages/grafana-prometheus/src/components/metrics-browser/useMetricsLabelsValues.ts
@@ -1,4 +1,5 @@
 import { useCallback, useEffect, useRef, useState, useMemo } from 'react';
+import { flushSync } from 'react-dom';
 import { useDebounce } from 'react-use';
 
 import { TimeRange } from '@grafana/data';
@@ -225,7 +226,10 @@ export const useMetricsLabelsValues = (timeRange: TimeRange, languageProvider: P
         newSelectedMetric === '' ? undefined : selector
       );
 
-      setMetrics(fetchedMetrics);
+      // TODO why?!
+      flushSync(() => {
+        setMetrics(fetchedMetrics);
+      });
       setSelectedMetric(newSelectedMetric);
       setLabelKeys(fetchedLabelKeys);
       setIsLoadingLabelKeys(false);