From b18d4b55b7e14c87fb6e2c6b8d8e00eba130b73b Mon Sep 17 00:00:00 2001
From: Vladyslav Karpov <41265069+Intendanto@users.noreply.github.com>
Date: Fri, 6 Oct 2023 04:04:41 +0300
Subject: [PATCH] fix: mui/material-ui SelectWidget value `undefined` (#3870)

* fix(mui): add check for not found indexes

* fix(material-ui): add check for not found indexes

---------

Co-authored-by: Heath C <51679588+heath-freenome@users.noreply.github.com>
---
 packages/material-ui/src/SelectWidget/SelectWidget.tsx | 2 +-
 packages/mui/src/SelectWidget/SelectWidget.tsx         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/material-ui/src/SelectWidget/SelectWidget.tsx b/packages/material-ui/src/SelectWidget/SelectWidget.tsx
index 0d5a1589fe..ba89a5b1f6 100644
--- a/packages/material-ui/src/SelectWidget/SelectWidget.tsx
+++ b/packages/material-ui/src/SelectWidget/SelectWidget.tsx
@@ -65,7 +65,7 @@ export default function SelectWidget<
       id={id}
       name={id}
       label={labelValue(label, hideLabel || !label, false)}
-      value={isEmpty ? emptyValue : selectedIndexes}
+      value={!isEmpty && typeof selectedIndexes !== 'undefined' ? selectedIndexes : emptyValue}
       required={required}
       disabled={disabled || readonly}
       autoFocus={autofocus}
diff --git a/packages/mui/src/SelectWidget/SelectWidget.tsx b/packages/mui/src/SelectWidget/SelectWidget.tsx
index 83815dee50..06ccd78fda 100644
--- a/packages/mui/src/SelectWidget/SelectWidget.tsx
+++ b/packages/mui/src/SelectWidget/SelectWidget.tsx
@@ -65,7 +65,7 @@ export default function SelectWidget<
       id={id}
       name={id}
       label={labelValue(label || undefined, hideLabel, false)}
-      value={isEmpty ? emptyValue : selectedIndexes}
+      value={!isEmpty && typeof selectedIndexes !== 'undefined' ? selectedIndexes : emptyValue}
       required={required}
       disabled={disabled || readonly}
       autoFocus={autofocus}