More detailed branch delete message

[kernie]

Fix #22624 . Message explains that deleted branch can only be restored for a short time period.

[zeripath]

I think perhaps this should just be a warning of this might not be possible to undo instead?

The proposed change appears even more likely to make people confused.

[kernie]

What about
Deleting a branch is permanent. It can only be undone shortly after the deletion. Continuue?

[a1012112796]

we can load this config value by backend directly, is't it? so I think we can show Deleting a branch is permanent. It can only be undone in %d days. Continuue?

[kernie]

I like that! It gives exact information without disturbing the user with technical details.

[wxiaoguang]

I think it's good to use the most strict warning for end users, do not make users expect some lucky miracle.

For example, what about the git cleanup task is scheduled to run in next minute?

So I'd like to keep the old wording. Users should keep in mind they shouldn't expect a deleted branch could be recovered.

[kernie]

I support a strict wording! However, I tiny hint that the repo is scheduled for removal helps understand that it does not disappear immediately...

I don't think we need to spend more time for this issue since the gain is minimal. Please accept or reject to your liking.

Thanks