psql \i command with a missing file name doesn't rollback the transaction

Hi,

We've discovered a surprising behavior of psql \i command. What we
sometimes to add new tables to the database is:

begin;
\i /path/to/table/definitions/table1.sql
\i /path/to/table/definitions/table2.sql
...
\i /path/to/table/definitions/tableN.sql
commit;

What we discovered that some files in the /path/to/table/definitions were
missing (say, table 2,3), but the table 1, 4... N appeared in the database
after executing the transaction. This is quite a catch, since we cannot
rely on transaction consistency when using an include directive.

The test is simple:

begin;
\i whatever;
select 1;
commit;

The expected behavior was that select 1 would lead to 'ERROR: current
transaction is aborted'.
The current behavior is that it is executed, although a message is emitted
to a client:
whatever: No such file or directory

Would it be possible from the client side to generate the rollback to the
server on an attempt to include a non-existing file (perhaps only when
ON_ERROR_STOP is set to 1?).

--
Regards,
Alexey Klyukin