Michael

Can confirm on Purpur 1.17.1, this is a major issue

It seems like tweakHandRestock does not work on tools, I don't know if this is intended or not

I was able to reproduce this. However, it seems like this is not an issue in helix, but rather in the [unicode_segmentation crate](https://github.com/unicode-rs/unicode-segmentation), possibly covered by [this issue](https://github.com/unicode-rs/unicode-segmentation/issues/119)

Having another look at this, I think the issue is that the unicode_segmentation crate expects indices into slices to be at the start of unicode sequences, this is something that...

This check won't be included in the unicode-segmentation crate (for now), see https://github.com/unicode-rs/unicode-segmentation/issues/120