From e86afca04ad72e727ac4718da46bcbb88f865614 Mon Sep 17 00:00:00 2001
From: danzel <danzel@localhost.geek.nz>
Date: Thu, 6 Dec 2012 13:42:27 +1300
Subject: [PATCH] Fix clearLayers not unsetting __parent of the markers,
 preventing them from being re-added. Fixes #99

---
 src/MarkerClusterGroup.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/MarkerClusterGroup.js b/src/MarkerClusterGroup.js
index 7d2dd19ef..ed8d2c68b 100644
--- a/src/MarkerClusterGroup.js
+++ b/src/MarkerClusterGroup.js
@@ -209,6 +209,10 @@ L.MarkerClusterGroup = L.FeatureGroup.extend({
 			}
 		}
 
+		this.eachLayer(function (marker) {
+			delete marker.__parent;
+		});
+
 		if (this._map) {
 			//Reset _topClusterLevel and the DistanceGrids
 			this._generateInitialClusters();