[HACKERS] Alter subscription..SET - NOTICE message is coming for table which isalready removed

Hi,

While performing - Alter subscription..SET  , I found that NOTICE 
message is coming duplicate next time , which  is not needed anymore.

X cluster=
create 100 tables
create publication ( create publication pub for all tables;)

Y cluster=
create 100 tables
create subscription ( create subscription sub connection 
'dbname=postgres user=centos host=localhost ) publication pub;

X cluster =
create 1 more table (create table r(n int));
create publication for this above table only (create publication pub1 
for table r;)

Y cluster=
create table r - create table r(n int);
alter publication -alter subscription sub set publication pub1 refresh;

in the notice message -> table 'r' added / 100 tables removed from the 
subscription

postgres=# alter subscription sub set publication pub1 refresh;
NOTICE:  added subscription for table public.r
NOTICE:  removed subscription for table public.t1
NOTICE:  removed subscription for table public.t2
NOTICE:  removed subscription for table public.t3
NOTICE:  removed subscription for table public.t4
NOTICE:  removed subscription for table public.t5
NOTICE:  removed subscription for table public.t6
--
--
--
ALTER SUBSCRIPTION

now again fire the same sql query

postgres=# alter subscription sub set publication pub1 refresh;
NOTICE:  removed subscription for table public.t78
ALTER SUBSCRIPTION

This notice message should not  come  as t.78 is already removed from 
earlier same command.

-- 
regards,tushar
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