Add task property that wasn't being copied over during refactoring

Change-Id: I4c87130faf3d477087aadfa9af0149a8144aa549
Signed-off-by: Brandon Dong <brandon.dong@tasktop.com>
diff --git a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskList.java b/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskList.java
index 72190ee..efe29dc 100644
--- a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskList.java
+++ b/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/internal/tasks/core/TaskList.java
@@ -591,6 +591,7 @@
 			newTask.setStatus(task.getStatus());
 			newTask.setNotes(task.getNotes());
 			newTask.setEstimatedTimeHours(task.getEstimatedTimeHours());
+			newTask.setUrl(task.getUrl());
 			addTaskContainers(task, newTask);
 		}
 		Map<String, String> attributeMap = oldTask.getAttributes();