Why isn't the whole session deleted when the session lifetime expires?

Question

Yii

There is a basket session on yii2, after the expiration of the lifetime, only half is deleted and
Array remains ( [items] => Array ( ) [total_price] => 41040 [count] => 2 )
How to make total_price & count also deleted?

Answer 1

That doesn't happen. Check where the session time is set. Check if there are rights. Is a new one created when the old one is killed? A very strange picture.