>> Please, verify it using recent snapshot build
>
>I installed on my dev machine and running for little more than 1 hour now.
>The fix seems to be work.
>
>I will install today afternoon/evening, or tomorrow morning on the production system.

The production system is running till yesterday 14h00 (UTC+2) with no increase in memory consumption.
Problem solved. Well done. Thanks a lot.

--
Joja