Masonic inside scroll div container

hello mate

thanks for this amazing component

looks like the useMasonry hook is not working correctly without images inside a scroll div container

i set overscanBy = 1, the visible items in the first load is incorrectly
https://codesandbox.io/s/masonic-inside-of-a-scrollable-div-example-forked-5cypjl

it works on the first load, but if you make any change in the code, you will see this result

https://snipboard.io/2xal3d.jpg)

- OS: Windows 11
- Browser: Brave
- Version: 11.35

Start with the linked CodeSandbox reproduction and the useMasonry hook, focusing on a scrollable div without images and overscanBy set to 1. Reproduce the incorrect first-load visibility and the changed result after editing the example; done means the visible items remain correct in both cases.

Written by the indexing model from the issue text.