Problem do backup/restore for empty database

Hello,

I tried to do backup/restore of empty database.
And get the following error:

Connecting to database for restore
Connecting to test4 as postgres
Creating OPERATOR =
Archiver(db): Could not execute query. Code = 7. Explanation from backend: 
'ERROR:  OperatorDef: operator "=" already defined
'.

Another funny thing is that dump of empty database occupies 657614 bytes.
It is quite much...

-- 
Sincerely Yours,
Denis Perchine

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