[18.0][IMP] queue_job: handle same uuid in duplicated db

[hoangtrann]

Because jobrunner can be initialized with instance having multiple databases, cloning a db with failed jobs would cause the jobrunner to failed and causing jobs hang.

[OCA-git-bot]

Hi @guewen, some modules you are maintaining are being modified, check this out!

[hoangtrann]

that's fair point, let me think about this more