The rule that's been applied at times is quite simple: In case of a re-tag, the previous tag is still open, so if someone chooses to tag that and something else, they can. If they choose to accept your re-tag, they can tag that and something else. Alternatively, you can of course also go out and set a new tag that's not a re-tag.
Personally, I always prefer it if a re-tag is swapped for another tag.
Cool, I'll leave it to someone to decide which tag to get! No chance of me setting a new tag before Monday unfortunately. My first foray in to bike tag and it's all gone tits up.
The rule that's been applied at times is quite simple: In case of a re-tag, the previous tag is still open, so if someone chooses to tag that and something else, they can. If they choose to accept your re-tag, they can tag that and something else. Alternatively, you can of course also go out and set a new tag that's not a re-tag.
Personally, I always prefer it if a re-tag is swapped for another tag.