Vercel

What version of Next.js are you using?

11 and 12 (only with Webpack 5)

What version of Node.js are you using?

14 and 16

What browser are you using?

does not matter

What operating system are you using?

Windows 10

How are you deploying your application?

SSG and/or Vercel Deploy via GitHub

Describe the Bug

**The issue only occurs with Webpack 5

The documentation for mutate talks about local mutation for faster feedback, but the documented way to use it only mutates after a promise has resolved - in other words, not immediately.

As a result, I've found myself writing code in this kind of pattern:

mutate(path, { ...data, patch }, false); // mutate immediately, don't revalidate
await patchData(patch); // await the 

const subscription = await stripe.subscriptions.retrieve(...) returns a subscription which does not have quantity. Guessing the relevant line should instead be: quantity: subscription.items.data[0].quantity