bug in tlimit?



I guess the following should not happen (5.11.0, on both Windows/GCL
and Linux/CMUCL):

,----
| (%i1) tlimit(s/(1+s^2)/sinh(s*T), s, inf);
| Is  T  positive, negative, or zero?
| 
| p;
| Invalid call to var-expand
|  -- an error.  To debug this try debugmode(true);
`----

Best regards,

Albert.