InputPathToUrlTransformPlugin does not work with file names containing spaces

[xplosionmind]

Operating system

Fedora 41

Eleventy

3.0.0

Describe the bug

When inserting an url-escaped path to a local Markdown file in a Markdown link, the transformation does not work. I tried both with relative and absolute paths, and I tried both escaping and not escaping the space.

Reproduction steps

1. In the same directory, create two templates, templateone.md and template two.md.
2. In templateone.md, write [Link to template two](template%20two.md).
3. The output does not convert the Markdown link to an existing HTML output file

Expected behavior

The link to template two.md should be transformed and working.

Reproduction

https://github.com/xplosionmind/tommi.space/tree/transform-bug

Note 1: the repository is very messed up, that bransh has been published just to debug this issue. (E.g. It is normal that the CSS is broken)
Note 2: Please use the file content/jam/public/Test.md for debugging
Note 3: The function used to generate permalinks might be relevant? https://github.com/xplosionmind/tommi.space/blob/transform-bug/.eleventy.js#L39-L41

[xplosionmind]

Hey @zachleat, pinging just to say that if you skipped this because you ran in the same error you mentioned in #3560, I now pushed a small fix removing the dependency that was blocking things, preventing you from replicating the issue.

Thank you so much for your work!

[zachleat]

Can confirm that this is a duplicate of #3583 which is shipping with v3.0.1-alpha.1. Make sure that any links in your markdown are properly escaped though! (e.g. [Link test](</template two.md>) with the plugin or [Link test](</template two/>) independent of our plugin)

Note the tests added in 5b82281 and 7bd5295 if you want further examples!

[xplosionmind]

Thank you @zachleat! Unfortunately, I did not spot the existing issue…

[zachleat]

No worries! It is my job to connect the issues!