setOrigin and setDestination changing others maps directions

Hi,

I have 2 classes with 2 differents maps with differents containers. When i made changes on one map, this is independant from the other map, excepts for setOrigin and setDestination. Those 2 functions impacts the two independants directions instances.

Class 1

this.map1 = new mapboxgl.Map({
      container: 'map1',
      style: 'mapbox://styles/mapbox/streets-v10',
    });

this.directions1 = new MapboxDirections({
      accessToken: mapboxgl.accessToken,
      unit: 'metric',
      profile: 'walking',
      interactive: false,
      controls: {
        inputs: false,
        instructions: false,
        profileSwitcher: false
      }
    });
    this.map1.addControl(this.directions);
... 
this.directions1.setOrigin([lon, lat]);
this.directions1.setDestination([lon+1, lat+1]);

Class 2

this.map2 = new mapboxgl.Map({
      container: 'map2',
      style: 'mapbox://styles/mapbox/streets-v10',
    });

this.directions2 = new MapboxDirections({
      accessToken: mapboxgl.accessToken,
      unit: 'metric',
      profile: 'walking',
      interactive: false,
      controls: {
        inputs: false,
        instructions: false,
        profileSwitcher: false
      }
    });
    this.map2.addControl(this.directions);
... 
this.directions2.setOrigin([lon+3, lat+3]);
this.directions2.setDestination([lon+3, lat+3]);

Problem : the setOrigin and setDestination from directions2 impacts the direction1 instance.