Yet another activity bug (cursor)

[<GUMBY at MIT-DM>]

In zwei in Release 5.1, Experimental MIT 1.4, COLOR 5.1, FEP 18, on Lisp Machine Buddy Holly (3600):

I was evaluating (load "foo") in my zwei (with c-sh-e).  Since the file
did not exist it asked me for an alternate pathname.  I hit break so I
could look around.  The break window was opened, but the cursor in the
interaction pane continues to blink.  Characters, however, went into the
break window.