Leaflet Layer Control: Ordering - leaflet

Question

We use the standard "layer control" from Leaflet. Instantiation is as follows:
this.controls[id] = L.control.layers({}, {}, {
collapsed: false
});
Layers are added dynamically and in random order (depending on when xhr requests complete). However it seems that leaflet implicity uses the _leaflet_id of the respective layer for ordering in the layer control and thus our layers appear in random order.
Is there any way to tell leaflet in which order it should display the layers in the control? E.g. by passing some additional parameter when calling the .addOverlay or .addBaseLayer methods?
Leaflet version is 1.0-dev

Answer 1

I found some hack-fix for the problem. However this is not a clean solution so feel free to post better answers.
Leaflet uses the _leaflet_id of the layer object for sorting. Thus the layer created first will always be on top. In order to sort the layers you will have to wrap the actual layer in a layer/feature group.
|- dummy layer group
|- some dummy geojson layer
|- your actual layer (will be added later)
Programatically:
var oFeatureGroup = L.featureGroup([
L.geoJson({
"type": "FeatureCollection",
"features": []
})
]);
Then we do some async loading and once we are ready we add the layer to the - more or less empty - layer group:
oFeatureGroup.addLayer(oMyMagicAsyncLoadedLayer)
We can then add the layer to the layer control and it will be sorted as "expected" where the order depends on the order of creation of the oFeatureGroup layers instead of the oMyMagicAsyncLoadedLayer.