fix(mapbox): Update widget reference when reusing DeckWidgetControl

When _processWidgets reuses a DeckWidgetControl for a new widget instance
with the same id and placement, the control's internal _widget reference
must be updated. Otherwise the control references the old widget, causing
incorrect behavior in onRemove() and potential memory leaks.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: chrisgervang

modules/mapbox/src/deck-widget-control.ts

@@ -67,4 +67,12 @@ export class DeckWidgetControl implements IControl {
   get widget(): Widget {
     return this._widget;
   }
+
+  /**
+   * Updates the wrapped widget reference.
+   * Used when reusing this control for a new widget instance with the same id.
+   */
+  setWidget(widget: Widget): void {
+    this._widget = widget;
+  }
 }

modules/mapbox/src/mapbox-overlay.ts

@@ -219,6 +219,8 @@ export default class MapboxOverlay implements IControl {
         // Same id and placement - reuse existing control to preserve container
         // Set _container on the new widget instance so WidgetManager uses it
         widget.props._container = existingControl.widget.props._container;
+        // Update the control's widget reference to the new instance
+        existingControl.setWidget(widget);
         newControls.push(existingControl);
         existingControlsById.delete(widget.id);
       } else {