#1132 Fix Sortable Grid page bug where labels with same text on didn'…

…t mark as correct when in 'wrong' cell after the answers had previously been checked at least once

modules/xerte/parent_templates/Nottingham/models_html5/grid.html

@@ -277,7 +277,7 @@
                 var yPos = (Math.floor($this.index() / columnLength)) + 1;
                 l_answer = ($this.text().trim() + " --> [" + yPos + "," + xPos + "]");
                 l_option = {source: $this.text().trim(),target: "[" + xPos + "," + yPos + "]"};
-
+				
                 if ($this.data("correct") == $this.index() || labelData[$("#grid .listHolder").index($this.parents(".listHolder"))][$this.index()] == $this.html()) {
 					$this.append('<span class="tick"><span class="ui-helper-hidden-accessible">' + x_getLangInfo(x_languageData.find("tick")[0], "label", "Correct") + '</span><span class="result fa fa-fw fa-x-tick"></span></span>');
                     numOfQuestions++;
@@ -654,7 +654,6 @@
 				}
 
 			} else {
-				debugger;
 				$holder = $('<div class="listHolder"></div>').appendTo($grid);
 				$ul = $('<ul/>').appendTo($holder);
 				labelData.push([]);
@@ -841,7 +840,7 @@
 								.removeClass("shadow")
 								.addClass("panel");
 
-							$grid.find(".tick").hide();
+							$grid.find(".tick").remove();
 						},
 						stop:	function() {
 							$(this)