noProrate() not working while updating quantity of a multiplan item

[rambo666]

• Cashier Version: 11.2.1
• Laravel Version: 6.18.10
• PHP Version: 7.2

Description:

While I update a plan quantity belonging to a multiplan subscriptin. Putting noProrate does not work. After I went to the stripe I can still see remaining time of quantity being invoiced.

I used the following code to update quantity for my plan
$user->subscription('default')->noProrate()->updateQuantity($qty,$subscriptionPlan)

Even though I used noProrate() the invoice on stripe was still prorating and showing remaining time of quantity on the invoice.

Steps To Reproduce:

Apply no prorate while updating quantity on stripe while there are multiplans on a subscription.

[driesvints]

Thanks, I also see the problem here. You've been very helpful so far, thanks!

[driesvints]

Sent in a PR for this: #924