loleaflet: When the 'premission' is 'edit', request a session immediately.

loleaflet/src/map/Map.js

@@ -72,6 +72,11 @@ L.Map = L.Evented.extend({
 		this._addLayers(this.options.layers);
 		this._socket = L.socket(this);
 
+		// when editing, we need the LOK session right away
+		if (options.permission === 'edit') {
+			this._socket.sendMessage('requestloksession');
+		}
+
 		// Inhibit the context menu - the browser thinks that the document
 		// is just a bunch of images, hence the context menu is useless (tdf#94599)
 		this.on('contextmenu', function() {});