SearchPane: Remove an existing panel if there is one when rebuilding a pane

features/searchPane/dataTables.searchPane.js

@@ -154,6 +154,16 @@
 
 			// Don't show the pane if there isn't enough variance in the data
 			if (this._variance(bins) < this.c.threshold) {
+				this
+					.dom
+					.container
+					.children()
+					.map(function() {
+						if ($(this).data('column') == idx) {
+							return this;
+						}
+					})
+					.remove();
 				return;
 			}