Hyperlinks: Relative path to files in parent directories do not work

[seflue]

Describe the bug

Assuming the following file tree

.
├── dir1
│   └── file2.org
├── dir2
│   └── file3.org
└── file1.org

If I reference a heading in file2 or file3 from file1, everything works as expected.
If I reference a heading from file2 to file1 or file2 to file3 (analogous from file3), the links break. The lsp autocompletion looks up headings from the file where I am creating the link. Somehow the path resolving breaks in this case.

Actually I am willing to fix it myself, if someone can give me some guidance where to look.

I already started to take a look into the hyperlink code and I have to admit, that I don't find it great. It is hard to graps and seems to be brittle. Adding features have a high risk to break things.

I am working on a refactoring right now and would like to coordinate with people already working on further features (I saw some open PRs). If I am successfull, the code should be much easier to extend in the future.

Steps to reproduce

Create a file tree like this:

├── dir1
│   └── file2.org
├── dir2
│   └── file3.org
└── file1.org

2. Create a headline in file1.org and file3.org
3. Try to create links to these headlines from file2 using relative paths.

Expected behavior

Should work like described in the documentation:

• autocompletion should list headlines from file1 and file3 respectively
• opening the link should jump to file1 and file3 respectively

Emacs functionality

No response

Minimal init.lua

I'm pretty sure, my lua configuration is not the issue here - should be reproducible with any setup.

Screenshots and recordings

No response

OS / Distro

openSUSE Tumbleweed

Neovim version/commit

0.9.1

Additional context

No response