Assumption:

• A component that appears on a page multiple times
• The component use ReactRedux.connect and reselect to select data based on state and component.props

Problem:
If the page have two or more component instances and their props are different, the memoize function (which has cache size = 1) will always cache miss.

This is because the memoize function is shared amongst all component instance, thus, component with different props will always invalidate each other.

Solution:
There are multiple solutions to this issue. I think memoize cache should bound to the component instance.