Dashboards: Limit panel title length (#102911)

Limit panel title length

public/app/features/dashboard-scene/serialization/layoutSerializers/utils.ts

@@ -59,7 +59,7 @@ export function buildVizPanel(panel: PanelKind): VizPanel {
 
   const vizPanelState: VizPanelState = {
     key: getVizPanelKeyForPanelId(panel.spec.id),
-    title: panel.spec.title,
+    title: panel.spec.title?.substring(0, 5000),
     description: panel.spec.description,
     pluginId: panel.spec.vizConfig.kind,
     options: panel.spec.vizConfig.spec.options,

public/app/features/dashboard-scene/serialization/transformSaveModelToScene.ts

@@ -323,7 +323,7 @@ export function buildGridItemForPanel(panel: PanelModel): DashboardGridItem {
 
   const vizPanelState: VizPanelState = {
     key: getVizPanelKeyForPanelId(panel.id),
-    title: panel.title,
+    title: panel.title?.substring(0, 5000),
     description: panel.description,
     pluginId: panel.type ?? 'timeseries',
     options: panel.options ?? {},

public/app/features/dashboard/dashgrid/DashboardGrid.tsx

@@ -111,6 +111,7 @@ export class DashboardGrid extends PureComponent<Props, State> {
       if (!panel.key) {
         panel.key = `panel-${panel.id}-${Date.now()}`;
       }
+      panel.title = panel.title?.substring(0, 5000);
       this.panelMap[panel.key] = panel;
 
       if (!panel.gridPos) {