Something is rotten in publication drop

I'm looking at this recent failure:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=mandrill&dt=2017-06-08%2023%3A54%3A12
which is

*** /home/nm/farm/xlc32/HEAD/pgsql.build/src/test/regress/expected/matview.out Thu Jun 8 23:55:50 2017
--- /home/nm/farm/xlc32/HEAD/pgsql.build/src/test/regress/results/matview.out Fri Jun 9 00:18:12 2017
***************
*** 155,171 ****

SET search_path = mvtest_mvschema, public;
\d+ mvtest_tvm
! Materialized view "mvtest_mvschema.mvtest_tvm"
! Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
! --------+---------+-----------+----------+---------+----------+--------------+-------------
! type | text | | | | extended | |
! totamt | numeric | | | | main | |
! View definition:
! SELECT mvtest_tv.type,
! mvtest_tv.totamt
! FROM mvtest_tv
! ORDER BY mvtest_tv.type;
!
-- modify the underlying table data
INSERT INTO mvtest_t VALUES (6, 'z', 13);
-- confirm pre- and post-refresh contents of fairly simple materialized views
--- 155,161 ----

SET search_path = mvtest_mvschema, public;
\d+ mvtest_tvm
! ERROR: publication "addr_pub" does not exist
-- modify the underlying table data
INSERT INTO mvtest_t VALUES (6, 'z', 13);
-- confirm pre- and post-refresh contents of fairly simple materialized views

This appears to have something to do with the concurrently-running
object_address test script, which creates and then drops a publication
named "addr_pub". However, there is no visible connection between
mvtest_tvm (or any of the objects it depends on) and addr_pub or any
of the objects it is told to publish. So what happened here, and
isn't this a bug?

regards, tom lane