Déjà vu of commit fc40ba1296a7, for another backslash command.
Strictly speaking this isn't a bug, but since all references to catalog
objects are schema-qualified, we might as well be consistent.  The
omission first appeared in commit ad600bba and replicated in
a4d75c86; backpatch to 14.

Author: Justin Pryzby <pryzbyj@telsasoft.com>
Discussion: https://postgr.es/m/20210827193151.GN26465@telsasoft.com