From 515c73d8e6550b70b1d54814c386415c52120357 Mon Sep 17 00:00:00 2001
From: Jack Westbrook <jack.westbrook@gmail.com>
Date: Wed, 26 May 2021 17:30:34 +0200
Subject: [PATCH] Transformations: Prevent FilterByValue transform crashing
 panel edit (#34747)

---
 .../FilterByValueTransformer/FilterByValueFilterEditor.tsx      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/app/core/components/TransformersUI/FilterByValueTransformer/FilterByValueFilterEditor.tsx b/public/app/core/components/TransformersUI/FilterByValueTransformer/FilterByValueFilterEditor.tsx
index a3b7a9db993..efdc3118054 100644
--- a/public/app/core/components/TransformersUI/FilterByValueTransformer/FilterByValueFilterEditor.tsx
+++ b/public/app/core/components/TransformersUI/FilterByValueTransformer/FilterByValueFilterEditor.tsx
@@ -21,7 +21,7 @@ export const FilterByValueFilterEditor: React.FC<Props> = (props) => {
   const { fieldsAsOptions, fieldByDisplayName } = fieldsInfo;
   const fieldName = getFieldName(filter, fieldsAsOptions) ?? '';
   const field = fieldByDisplayName[fieldName];
-  const matcherOptions = getMatcherOptions(field);
+  const matcherOptions = field ? getMatcherOptions(field) : [];
   const matcherId = getSelectedMatcherId(filter, matcherOptions);
   const editor = valueMatchersUI.getIfExists(matcherId);