Ensure that the sort order of crops is saved

src/Umbraco.Web.UI.Client/src/views/propertyeditors/imagecropper/imagecropper.prevalues.controller.js

@@ -69,4 +69,8 @@ angular.module("umbraco").controller("Umbraco.PrevalueEditors.CropSizesControlle
 	        //there was an error, do the highlight (will be set back by the directive)
 	        $scope.hasError = true;
         };
+
+	    $scope.sortableOptions = {
+	        axis: 'y'
+	    }
 	});

src/Umbraco.Web.UI.Client/src/views/propertyeditors/imagecropper/imagecropper.prevalues.html

@@ -58,7 +58,7 @@
 
     </div>
 
-    <div ui-sortable="sortableOptions" class="umb-cropsizes__sortable">
+    <div ui-sortable="sortableOptions" class="umb-cropsizes__sortable" ng-model="model.value">
         <div class="control-group umb-prevalues-multivalues__listitem" ng-repeat="item in model.value">
             <i class="icon icon-navigation handle"></i>
             <div class="umb-prevalues-multivalues__left">