[THIN] minor issue, but annoying

I have noticed that while we do have clipboard mapping turned on, it doesn't seem to carry over all the time.

If I am copying stuff from outside the session and pasting it within the session it seems to work fine UNTIL I copy and paste something from Inside the session to another point inside the same session.  After that anything I copy from outside teh session and paste into the session seems ignored and only the last thing copied Inside the session shows up.

Its probably addressed already but I havent found a "search friendly" way to describe the problem so I can track it down