From ce8e569700107af12b81fd27f24ff33e3001caf8 Mon Sep 17 00:00:00 2001
From: Ivana Huckova <30407135+ivanahuckova@users.noreply.github.com>
Date: Tue, 26 Oct 2021 13:07:11 +0200
Subject: [PATCH] Fix error reseting (#40893)

---
 .../datasource/prometheus/components/PromExemplarField.tsx     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/public/app/plugins/datasource/prometheus/components/PromExemplarField.tsx b/public/app/plugins/datasource/prometheus/components/PromExemplarField.tsx
index 620a18bbeb4..66e0864c703 100644
--- a/public/app/plugins/datasource/prometheus/components/PromExemplarField.tsx
+++ b/public/app/plugins/datasource/prometheus/components/PromExemplarField.tsx
@@ -26,7 +26,8 @@ export function PromExemplarField({ datasource, onChange, query }: Props) {
       onChange(false);
     } else {
       setError(null);
-      if (prevError !== error) {
+      // If error is cleared, we want to change exemplar to true
+      if (prevError && !error) {
         onChange(true);
       }
     }