Helix crash with :reflow on some file

[nakrule]

Summary

Helix crash when I use :reflow 100 on a whole markdown file (all lines selected in visual mode).

Error:

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Line index out of bounds: line index 50, Rope/RopeSlice line count 42', /Users/brew/Library/Caches/Homebrew/cargo_cache/registry/src/github.com-1ecc6299db9ec823/ropey-1.5.0/src/slice.rs:424:41
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

This does not happend with every files I tried. I included a download link to one that will reproduce the bug.

Reproduction Steps

I tried this:

1. Download the following file: https://pastebin.com/e3Ryjrrw
2. Open the file with Helix
3. Select all lines with gg and then vge
4. Use :reflow 100
5. helix crash

Helix log

No response

Platform

macOS

Terminal Emulator

iTerm

Helix Version

helix 22.08.1 (66276ce)

[David-Else]

Your file works on the master branch using Linux, could you try and compile from master and see if it is fixed for you?

[zen3ger]

Not the author, but I did the repro tests on helix 22.08.1 (0e23e4f8) and I did not observed the crash.

[the-mikedavis]

This was fixed in #3733