Description

When you use the promote or demote command on someone that has a group on a specific track, the expiry time (in case it is a temporary group) won't conserve and it will turn permanent.

Reproduction steps

1- Create a track including 2 groups (group "A" and group "B")
2- Apply yourself one of those groups temporarily.
3- Promote or demote yourself on that track, and the expiry time won't be conserved, turning into a permanent group.

Expected behaviour

I actually don't really know if this is an intended behavior, but actually the current behavior is not that bad, but I think that maybe a flag (on the promote and demote command) for keeping the expiry time instead of turning it permanent, would solve this issue.

Environment details

PaperSpigot 1.8.8
Luckperms v5.2.67

Any other relevant details

I labeled this as "bug" because I discussed this issue on the luckperms discord to get opinions on this behavior, but this could be also interpreted as a suggestion/idea.

How use tmp promote?

I'm not sure a flag is necessary - but I've switched it so the expiry time is preserved :)

Thank you lucko
Have a hppy new year!