[slime-devel] can't change *readtable* from repl

[Alan Ruttenberg]

CL-USER> *readtable*
#<READTABLE #x5322ECE>
CL-USER> (copy-readtable)
#<READTABLE #xD70F94E>
CL-USER> (setq *readtable* *)
#<READTABLE #xD70F94E>
CL-USER> *readtable*
#<READTABLE #x5322ECE>


Noticed this because cl-interpol enabling function stopped working at 
some point.

-Alan