BUG #4665: pgAdmin: non checking PG version on vacuum

The following bug has been logged online:

Bug reference:      4665
Logged by:          Artiom A. Makarov
Email address:      art@gifts.ru
PostgreSQL version: 8.3.5/8.3.6
Operating system:   windows XP SP2 rus / Ubuntu 8.04 x86_64
Description:        pgAdmin: non checking PG version on vacuum
Details:

pg 8.3.5 (Ubuntu 8.04 x86_64) upgraded up to 8.3.5 without dump_all /
restore.

Running vacuum analyze from pgAdmin 8.3.5 (windows XP) on 8.3.6 database
raise a lot of errors. After vacuum stopped with error many sequence
randomly change values.

There are no errors when both server and pgAdmin 8.3.6.

On a my opinion, pgAdmin must deny vacuum/analyze on inconsistent version.