When clear a list, saved list cleared also

**Question**
when i clear the list i put in hive. clearing the list in hive.
**Code sample**



when l close the page, l clear listForDb list. but because of this, the data base also changes, how can I prevent this?

Start by reproducing the reported listForDb behavior described in the issue and compare clearing the in-memory list with the persisted Hive data shown in the screenshots. Determine the intended separation between the list and the saved database value; done means clearing the list no longer changes the stored data, with a regression test covering that scenario.

Written by the indexing model from the issue text.