[BUG] Removal from map no longer removes any markers or clusters.

[Driklyn]

PROBLEM

After updating to the latest version, I noticed that removing a L.MarkerClusterGroup from a map no longer removes any markers or clusters. Good news is it's an easy fix.

In L.MarkerClusterGroup's onRemove function, you have this code:

this._map = null;

//Clean up all the layers we added to the map
for (var i in this._layers) {
    if (this._layers.hasOwnProperty(i)) {
        L.FeatureGroup.prototype.removeLayer.call(this, this._layers[i]);
    }
}

Trouble is, _this.map is set to null before L.FeatureGroup's removeLayer is called, which relies on _this.map (technically L.LayerGroup's removeLayer does) with this code:

if (this._map) {
    this._map.removeLayer(layer);
}

Since _this.map is already set to null by the time the above code executes, nothing happens.

SOLUTION

Set this.map to null _after removeLayer is called:

//Clean up all the layers we added to the map
for (var i in this._layers) {
    if (this._layers.hasOwnProperty(i)) {
        L.FeatureGroup.prototype.removeLayer.call(this, this._layers[i]);
    }
}

this._map = null;

[danzel]

lmao thanks :-)
I'll fix this up later today!

[Driklyn]

:)