### Bug fixes

[`Mapping.invert`](https://prosemirror.net/docs/ref/#transform.Mapping.invert) is now part of the documented API (it was intented to be public from the start, but a typo prevented it from showing up in the docs).

Fix an issue where a replace could needlessly drop content when the first node of the slice didn't fit the target context.

`replaceRange` now more aggressively expands the replaced region if `replace` fails to place the slice.