diff --git a/frontend/src/components/DataGrid.ddl.test.tsx b/frontend/src/components/DataGrid.ddl.test.tsx
index 1d1961b..26fcf07 100644
--- a/frontend/src/components/DataGrid.ddl.test.tsx
+++ b/frontend/src/components/DataGrid.ddl.test.tsx
@@ -1091,6 +1091,64 @@ describe('DataGrid DDL interactions', () => {
     renderer!.unmount();
   });
 
+  it('keeps pending local changes visible after refreshing the grid', async () => {
+    const reloadSpy = vi.fn();
+
+    const Harness = () => {
+      const [rows, setRows] = React.useState([
+        { __gonavi_row_key__: 'row-1', id: 1, name: 'old' },
+      ]);
+
+      return (
+        <DataGrid
+          data={rows}
+          columnNames={['id', 'name']}
+          loading={false}
+          tableName="users"
+          dbName="main"
+          connectionId="conn-1"
+          pkColumns={['id']}
+          editLocator={{
+            strategy: 'primary-key',
+            columns: ['id'],
+            valueColumns: ['id'],
+            readOnly: false,
+          }}
+          onReload={() => {
+            reloadSpy();
+            setRows([{ __gonavi_row_key__: 'row-1', id: 1, name: 'old' }]);
+          }}
+        />
+      );
+    };
+
+    let renderer: ReactTestRenderer;
+    await act(async () => {
+      renderer = create(<Harness />);
+    });
+    await waitForEffects();
+
+    await act(async () => {
+      renderer!.root.findByType(DataGridToolbarFrame).props.onAddRow();
+    });
+    await waitForEffects();
+
+    expect(testRenderState.latestTableProps.dataSource).toHaveLength(2);
+    expect(renderer!.root.findByType(DataGridToolbarFrame).props.pendingChangeCount).toBe(1);
+
+    await act(async () => {
+      renderer!.root.findByType(DataGridToolbarFrame).props.onRefresh();
+    });
+    await waitForEffects();
+    await waitForEffects();
+
+    expect(reloadSpy).toHaveBeenCalledTimes(1);
+    expect(testRenderState.latestTableProps.dataSource).toHaveLength(2);
+    expect(testRenderState.latestTableProps.dataSource[1][GONAVI_ROW_KEY]).toContain('new-');
+    expect(renderer!.root.findByType(DataGridToolbarFrame).props.pendingChangeCount).toBe(1);
+    renderer!.unmount();
+  });
+
   it('localizes v2 column header fallback labels', () => {
     setCurrentLanguage('en-US');
 
diff --git a/frontend/src/components/DataGrid.layout.test.tsx b/frontend/src/components/DataGrid.layout.test.tsx
index 03206fc..816aa19 100644
--- a/frontend/src/components/DataGrid.layout.test.tsx
+++ b/frontend/src/components/DataGrid.layout.test.tsx
@@ -2037,10 +2037,13 @@ describe('DataGrid layout', () => {
     }
   });
 
-  it('clears modified cell markers when refreshing the grid', () => {
+  it('keeps pending cell markers when refreshing the grid', () => {
     const source = readDataGridSource();
 
-    expect(source).toMatch(/const handleRefreshGrid = useCallback\(\(\) => \{[\s\S]*setModifiedColumns\(\{\}\);[\s\S]*if \(onReload\) onReload\(\);[\s\S]*\}, \[[\s\S]*clearAutoCommitTimer[\s\S]*onReload[\s\S]*\]\);/);
+    expect(source).toMatch(/const handleRefreshGrid = useCallback\(\(\) => \{[\s\S]*setSelectedRowKeys\(\[\]\);[\s\S]*if \(onReload\) onReload\(\);[\s\S]*\}, \[[\s\S]*onReload[\s\S]*\]\);/);
+    expect(source).not.toMatch(/const handleRefreshGrid = useCallback\(\(\) => \{[\s\S]*setAddedRows\(\[\]\);[\s\S]*if \(onReload\) onReload\(\);[\s\S]*\}\,/);
+    expect(source).not.toMatch(/const handleRefreshGrid = useCallback\(\(\) => \{[\s\S]*setModifiedRows\(\{\}\);[\s\S]*if \(onReload\) onReload\(\);[\s\S]*\}\,/);
+    expect(source).not.toMatch(/const handleRefreshGrid = useCallback\(\(\) => \{[\s\S]*setDeletedRowKeys\(new Set\(\)\);[\s\S]*if \(onReload\) onReload\(\);[\s\S]*\}\,/);
   });
 
   it('routes temporal inline editors through the current connection config', () => {
diff --git a/frontend/src/components/DataGridShell.tsx b/frontend/src/components/DataGridShell.tsx
index 8140cff..bdecebc 100644
--- a/frontend/src/components/DataGridShell.tsx
+++ b/frontend/src/components/DataGridShell.tsx
@@ -479,12 +479,6 @@ const renderDataTableView = () => (
   ), [columnMetaMap, columnMetaMapByLowerName, currentConnConfig, dbType, displayColumnNames, effectiveEditLocator, rowEditorOpen, rowEditorRowKey]);
 
   const handleRefreshGrid = useCallback(() => {
-      clearAutoCommitTimer();
-      autoCommitFailedTokenRef.current = -1;
-      setAddedRows([]);
-      setModifiedRows({});
-      setDeletedRowKeys(new Set());
-      setModifiedColumns({});
       setSelectedRowKeys([]);
       const normalizedTableName = String(tableName || '').trim();
       const normalizedDbName = String(dbName || '').trim();
@@ -496,7 +490,7 @@ const renderDataTableView = () => (
           setMetadataReloadVersion((value: number) => value + 1);
       }
       if (onReload) onReload();
-  }, [clearAutoCommitTimer, connectionId, dbName, onReload, tableName]);
+  }, [connectionId, dbName, onReload, tableName]);
 
   const handleResetPendingChanges = useCallback(() => {
       clearAutoCommitTimer();