Problem dropping table

We are using postgresql 8.2.3 with slony1 1.2.8 and we're having
problems trying to drop a table on the slony1 secondary that was
sucessfully dropped on the master database.

I'm sure this is just because I'm missing something, but it doesn't seem
like there should be any reason the table cannot be dropped. The problem
seems to be due to a foreign key constraint on the table we are trying
to drop, I don't believe any other tables reference the table we are
trying to drop with foreign key constraints.

The schema of the table is as follows:
Table "public.member_note"
Column | Type | Modifiers
-----------+---------+-----------
member_id | bigint | not null
notes_id | bigint | not null
notes_idx | integer | not null
Foreign-key constraints:
"fkb5d78a7737864f78" FOREIGN KEY (member_id) REFERENCES member(id)
"fkb5d78a77503a5452" FOREIGN KEY (notes_id) REFERENCES note(id)

When we try to drop the table we get the error:
ERROR: "member_pkey" is an index

This error seems to have something to do with the primary key in the
related member table:
Table "public.member"
Column | Type | Modifiers
-------------------+------------------------+-----------
discriminator | character varying(31) | not null
id | bigint | not null
deleted | boolean | not null
status | character varying(255) | not null
principal_id | bigint |
extravaluelist_id | bigint |
Indexes:
"member_pkey" PRIMARY KEY, btree (id)
"member_principal_id_key" btree (principal_id)
Foreign-key constraints:
"fk892776ba530919c4" FOREIGN KEY (extravaluelist_id) REFERENCES
extravaluelist(id)
"fk892776baa88520c6" FOREIGN KEY (principal_id) REFERENCES
principal(id)

We have also tried to drop the foreign key constraint on the table as an
intermediate step to getting rid of the table:
alter table member_note drop constraint fkb5d78a7737864f78;
ERROR: "member_pkey" is an index

Anyone know how to drop this table or what the error means?