[Bug] reuseMaps does not reset all reactive props

[felixpalmer]

Description

reuseMaps should allow re-rendering the Map component without having to reinitialized the underlying basemap library.

By changing the set of props passed it is possible to get into a invalid state with a deck.gl layer - where for example the basemap cannot tilt, while deck can.

Expected Behavior

No response

Steps to Reproduce

Open https://deck.gl/examples/maplibre and then use the table of contents to switch to the https://deck.gl/examples/hexagon-layer. If either is loaded directly, the issue does not occur

Screen.Recording.2025-09-30.at.15.55.51.mov

Environment

• Framework version: deck.gl 9.1 & also 9.2
• Map library: Maplibre
• Browser: Firefox/Chrome
• OS: OSX 15.5

Logs

No response

[felixpalmer]

I believe the issue is in:

private _updateSettings(nextProps: MaplibreProps, currProps: MaplibreProps): boolean {
    const map = this._map;
    let changed = false;
    for (const propName of settingNames) {
      if (propName in nextProps && !deepEqual(nextProps[propName], currProps[propName])) {
        changed = true;
        const setter = map[`set${propName[0].toUpperCase()}${propName.slice(1)}`];
        setter?.call(map, nextProps[propName]);
      }
    }
    return changed;
  }

When propName is missing from nextProps, the setter is never invoked and the old value is cached