Fix infinite loop with job caps. See #173

[markoheijnen]

This will stop comparing bbl_job with bbl_job inside user_has_cap.

[johnbillion]

I'm happy for this to go in, but I'd also be interested to know how your colleague managed to create a translation job for a translation job.

[markoheijnen]

Even if that issue can be fixed, this code still should be in place so we don't generate an infinitive loop when it does happen. I do my best to reproduce what he did. Thats why we have ##173.

[simonwheatley]

Thanks, Marko!