Do you receive a claim tag when luggage is gate checked using the yellow tags? How would the bag be traced if there's no record of the tag number that was attached?

I've only experienced it twice: once at Athens where they used normal white bag tags that had been pre-printed, which came with the normal claim tag; and a second time where my luggage was taken off me by the cabin crew once on the plane as there was no space left anyone, I didn't receive a claim tag and had a very nervous wait at the carousel on arrival. No experience of the yellow type of tags.

I know you also don't get a tag when using the self-service luggage check-in, but I'm told the system records the tag number against your booking details electronically. This doesn't happen with the gate checking system.