C-M-L has trouble

[Steven C. Bagley <bagley at MIT-OZ>]

In zwei in Release 5.1, Experimental MIT 1.5, on Lisp Machine Robot-4 (3600):

With a fresh machine, run (dribble-start "foo" t) to put some cruft into
a buffer, do (dribble-end), select-e.  You're now looking at *BUFFER-1*.
Type C-M-L to select the foo buffer.  Zwei beeps at you.  You can select
the foo buffer with C-X b, or C-X C-B mouse on buffer name, but not
C-M-L.  After foo has been select once, then C-M-L works fine.