Use new range-tracker method.

services/web/public/coffee/ide/editor/directives/aceEditor/track-changes/TrackChangesManager.coffee

@@ -240,8 +240,7 @@ define [
 				throw new Error("unknown change: #{JSON.stringify(change)}")
 
 		bulkAcceptChangeIds: (change_ids) ->
-			for change_id in change_ids
-				@rangesTracker.removeChangeId(change_id)
+			@rangesTracker.removeChangeIds(change_ids)
 			@updateAnnotations()
 
 		bulkRejectChangeIds: (change_ids) ->

services/web/public/coffee/ide/review-panel/controllers/ReviewPanelController.coffee

@@ -80,8 +80,7 @@ define [
 
 		ide.socket.on "accept-changes", (doc_id, change_ids) ->
 			if doc_id != $scope.editor.open_doc_id
-				for change_id in change_ids
-					getChangeTracker(doc_id).removeChangeId(change_id)
+				getChangeTracker(doc_id).removeChangeIds(change_ids)
 			else
 				$scope.$broadcast "change:bulk-accept", change_ids
 			updateEntries(doc_id)