From 329cc9ac9b0277cc625ed29fcc50046adb5daccf Mon Sep 17 00:00:00 2001
From: Maja Komel <maja.komel@gmail.com>
Date: Fri, 24 Feb 2023 20:42:35 +0100
Subject: [PATCH] Fix error on MAT when dates typed in manually

---
 components/aggregation/mat/Form.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/aggregation/mat/Form.js b/components/aggregation/mat/Form.js
index be43b004c..32a10e357 100644
--- a/components/aggregation/mat/Form.js
+++ b/components/aggregation/mat/Form.js
@@ -205,7 +205,8 @@ export const Form = ({ onSubmit, testNames, query }) => {
   const since = watch('since')
   const until = watch('until')
   const timeGrainOptions = useMemo(() => {
-    if (!since || !until) return ['hour', 'day', 'week', 'month']
+    const dateRegex = /^\d{4}-\d{2}-\d{2}$/
+    if (!until.match(dateRegex) || !since.match(dateRegex)) return ['hour', 'day', 'week', 'month']
     const diff = dayjs(until).diff(dayjs(since), 'day')
     if (diff < 8) {
       const availableValues = ['hour', 'day']