From 7c5229c279ee1078ef77077b70c743b564c2df93 Mon Sep 17 00:00:00 2001
From: Andrew Cherniavskyi <andrew@mui.com>
Date: Wed, 7 Feb 2024 20:50:17 +0100
Subject: [PATCH] set width: unset for tree data grouping cell

---
 .../x-data-grid/src/components/containers/GridRootStyles.ts    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/x-data-grid/src/components/containers/GridRootStyles.ts b/packages/x-data-grid/src/components/containers/GridRootStyles.ts
index ec0a2755e7365..efa21da4ebae6 100644
--- a/packages/x-data-grid/src/components/containers/GridRootStyles.ts
+++ b/packages/x-data-grid/src/components/containers/GridRootStyles.ts
@@ -240,6 +240,9 @@ export const GridRootStyles = styled('div', {
       [`& .${c.groupingCriteriaCell}`]: {
         width: 'unset',
       },
+      [`& .${c.treeDataGroupingCell}`]: {
+        width: 'unset',
+      },
     },
     [`& .${c.columnHeader}, & .${c.cell}`]: {
       WebkitTapHighlightColor: 'transparent',