Quote from https://sourceforge.net/p/firebird/mailman/message/35391555/
Sending link privately. When that happens again I'll try to take the
> PS Stack shows that EXECUTE STATEMENT is used, probably with autonomous
> transactions - it could block itself if used not correctly (for example:
> update record and then update it again in autonomus tx with "wait"
Any suggestion how to implement test for this ticket ?