Catalog item "clear the value" checkbox issue

Hello, everyone.

Does anyone have a solution for the "clear the value" checkbox issue on UI Policy?

When we check the checkbox, the variable values on RITM disappear, and when we uncheck the checkbox, a problem occurs on the form (after checking and unchecking the conditional checkbox variable, the previous value of the variable that was supposed to be cleared remains). Has anyone found a solution? that it should function as "clear the value" on the portal but not vanish the value on the RITM.

Thank you