Saying "this issue" is confusing because it could be understood as the
issue that the user is currently viewing, not which the "issue" link
points to.
issues.start_tracking = Start Time Tracking
issues.start_tracking_history = `started working %s`
issues.tracker_auto_close = Timer will be stopped automatically when this issue gets closed
-issues.tracking_already_started = `You have already started time tracking on this <a href="%s">issue</a>!`
+issues.tracking_already_started = `You have already started time tracking on <a href="%s">another issue</a>!`
issues.stop_tracking = Stop
issues.stop_tracking_history = `stopped working %s`
issues.add_time = Manually Add Time