What is the current behavior:

1. Create non-serializable store (with serialize: 'ignore')
2. Change its value during fork
3. Serialize fork values
4. Value of store will be serialized

Please provide the steps to reproduce and if possible a minimal demo of the problem via https://share.effector.dev, https://codesandbox.io or similar

https://share.effector.dev/CNYd8jSq

What is the expected behavior:

1. Create non-serializable store (with serialize: 'ignore')
2. Change its value during fork
3. Serialize fork values
4. Value of store won't be serialized

Which versions of effector packages, and which browser and OS are affected by this issue? Did this work in previous versions of effector?:

master