Target link for `:help [` produces broken markdown link

[Gumnos]

Describe the bug

Issuing :help [ produced a rendering issue with the bot's resulting markdown

To Reproduce

Steps to reproduce the behavior:

1. Create a comment in /r/vim containing :help [

2. Let the bot respond

Expected behavior

Expected a link to the corresponding help-target https://vimhelp.org/index.txt.html#%5B (which it found & created), but the Markdown of the link got messed up. See https://www.reddit.com/r/vim/comments/15lvgi2/what_commonly_used_vim_motionsthemesfeatures_do/jvd80or/

• [] Willing to take up?

[heraldofsolace]

This is weird, because the bot definitely produces URL-encoded text. We already have tests for that. Maybe Reddit is changing the URL when posting. I will look into it

[Gumnos]

I'm getting a similar issue with ] in links as shown in this helpbot reply where the help-link for ]p seems to trigger breakage in the generated Markdown (it finds the correct help-target URL and uses that, just putting the "wrong" thing in the […]() bit of the link causing it to get misinterpreted). Both of these are in Old Reddit, FWIW.

[heraldofsolace]

This seems to be the case for old Reddit only. In new Reddit it renders correctly. I think I can circumvent this problem by replacing the brackets with full width square brackets.

[heraldofsolace]

This is fixed now