Marking links to tasks as done when the task is done in other projects too

Hi there, if I have a link to a task in the description or comment of an other task and they are in the same project. When the linked task is done, the link appears as crossed out. But when I do the same but the link to the task is in a different organization and project. The link doesn't change even if the task linked to is already done. I guess that's bug.