Current elixir timer does not replace with a new timer

[Futumsh]

With the next update, using an elixir kit should work if there is one already applied, and be considered 'not useful' so opening is prevented if more than half of its duration would be wasted.

So if you have 20 min left and try to open a 30 min elixir, it should not let you, but if you have 10 min left it should (and you would have 30m of buff).