Wrong version of cart when selecting shipping method in checkout

[heaenwie]

Current behavior

The versioning of the cart is broken and after you purchase something, the wrong cart number is stored and you cannot proceed with the checkout.

Expected behavior

Steps to reproduce the issue

Steps to reproduce:

1. Login on account mciesielska@divante.pl - order products - success;
2. Log out
3. login on another account (mciesielska+1@divante.pl) - order products - proceed to shipping. Error shows when clicking select shipping method, error:

Checkout error: [VSF][error] [GraphQL error]: Message: Object fbb927f3-e23b-4895-9012-64b015763785 has a different version than expected. Expected: 118 - Actual: 124., Location: [column: 3, line: 303], Path: cart
64285f5.modern.js:2 Uncaught (in promise) Error: GraphQL error: Object fbb927f3-e23b-4895-9012-64b015763785 has a different version than expected. Expected: 118 - Actual: 124.
at new t (64285f5.modern.js:2)
at Object.next (64285f5.modern.js:2)
at A (64285f5.modern.js:2)
at C (64285f5.modern.js:2)
at e.value (64285f5.modern.js:2)
at 64285f5.modern.js:2
at Set.forEach ()
at Object.next (64285f5.modern.js:2)
at A (64285f5.modern.js:2)
at C (64285f5.modern.js:2)

Version of Vue Storefront

• Vue Storefront
• Vue Storefront Next

Can you handle fixing this bug by yourself?

• YES
• NO

Which Release Cycle state this refers to? Info for developer. (doesn't apply to Next)

Pick one option.

• This is a bug report for test version on https://test.storefrontcloud.io - In this case Developer should create branch from develop branch and create Pull Request 2. Feature / Improvement back to develop.
• This is a bug report for current Release Candidate version on https://next.storefrontcloud.io - In this case Developer should create branch from release branch and create Pull Request 3. Stabilisation fix back to release.
• This is a bug report for current Stable version on https://demo.storefrontcloud.io and should be placed in next stable version hotfix - In this case Developer should create branch from hotfix or master branch and create Pull Request 4. Hotfix back to hotfix.

Environment details

• Browser:
• OS:
• Node:
• Code Version:

Additional information

The client wants to go live in the middle of this week and this error is blocking the release.

[andrzejewsky]

probably fixed by #5264, even though, I think there is something missing in the synchronization between cart and the checkout, seems like, after login out, checkout still keeps the old cart

[filipsobol]

Issue is caused by project specific code and doesn't affect core.