Can anyone help...

Question

Can anyone help...

foundUser.currentPlan.hasActivePlan = false
foundUser.expiredPlans.push(foundUser.currentPlan)

if (foundUser.upcomingPlan[0]) {
if (foundUser.upcomingPlan[0].hasUpcomingPlan) {
console.log("adding upcoming plan to current plan");
foundUser.currentPlan.hasActivePlan = true
foundUser.currentPlan.validity = foundUser.upcomingPlan[0].validity
foundUser.currentPlan.planActivationDate = moment().format("DD/MM/YYYY HH:mm:ss")
foundUser.currentPlan.expireyDate = moment().add(foundUser.upcomingPlan[0].validity, 'days').format("DD/MM/YYYY HH:mm:ss")
foundUser.currentPlan.amount = foundUser.upcomingPlan[0].amount
foundUser.upcomingPlan.shift()
}
}

foundUser.save()

Here you can see (in bold text) first i'm trying to push old value of founduser.currentplan in foundUser.expiredplans and after that if upcomingplans exists then updating the founduser.currentplan with different values and later saving it using foundUser.save().
My problem is that if the condition is true then instead of saving old values of currentplan in expiredplans it is saving new values to it. How to solve it??