How to Change the Change Request state back to the Previous State

[SayanG838505890]

Hello Team,

Recently I have created a New RFC type(Informational) for Change Request.

For That I have created a BR. Which will work only when change task of RFC type is Informational.
But the BR is not correct and impacted the rest of the RFC Type.
Now I have disabled the BR, but now I want to make the Change Request state back to Previous state.
Condition:

(function executeRule(current, previous /*null when async*/) {

    var change_request = new GlideRecord('change_request');

    change_request.addQuery('change_request',current.sys_id);

    change_request.query();

    while(change_request.next()){

        change_request.setWorkflow(false);

        change_request.state = 0;

        change_request.update();

    }

})(current, previous);



Now Please help me to change the state of the Impacted Change Request to the Previous State
Thanks in advance