Recent RI changes have broken something

Does anyone know what is happening here?  There is no other user; the
CREATE TABLE is part of a much larger script that was working OK last
Thursday.  The script drops and recreates an entire database.

bray=# \d country       Table "country"Attribute |  Type   | Modifier 
-----------+---------+----------id        | char(2) | not nullname      | text    | not nullregion    | text    |
telcode  | text    | 
 
Index: country_pkey
Constraint: (id ~ '[A-Z]{2}'::text)

bray=# create table country_ccy
(  country     char(2)     references country (id) match full,  ccy      char(3)     references currency (symbol) match
full, primary key (country, ccy)
 
)
;
NOTICE:  CREATE TABLE/PRIMARY KEY will create implicit index 
'country_ccy_pkey'
for table 'country_ccy'
NOTICE:  CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR:  RelationClearRelation: relation 21645 modified while in use

bray=# select relname from pg_class where oid = 21645;relname 
---------country
(1 row)

country was referenced in a previous table's foreign key.  In view of
the notes on RelationClearRelation, I am wondering if refcount wasn't 
decremented after that table was created.


-- 
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver              PGP key from public servers; key
ID32B8FAA1                ========================================    "My son, if sinners entice thee, consent thou
not."                              Proverbs 1:10