[BUG] Unable to render TOC in org-mode files

[pace577]

Describe the bug
When I try to generate the table of contents for a post with the ShowToc: true option, I don't see the TOC on the post as expected.

• Device/Os: Manjaro
• Type: Desktop
• Browser and version: Mozilla Firefox 108.0.1
• Hugo Version [ >=0.83.0 expected]: 0.108.0
• Theme Version [e.g. v4.0, master, or commit-id ]: d3d90be

Steps to reproduce the behavior:

1. Create an org file with hugo new post.org with at least one heading (Eg: * Heading )
2. Add ShowToc: true in the front matter of post.
3. Serve the site with hugo serve -D.
4. Open the page and see that the TOC is not visible.

However, note that the TOC is displayed if a .md file was made instead of a .org file.

Expected behavior:
Table of Contents was supposed to appear as expected.

Additional context
Upon debugging, I found that changing the regexp in this line from <h[1-6].*?>(.|\n])+?</h[1-6]> to <h[1-6].*?>(.|\n)+?</h[1-6]> (removed a ] character in the middle) seems to give expected behaviour.

Making this change locally fixed the bug for me, but I do not understand why it happened!

[adityatelange]

I haven't tested this on org files. Using markdown is recommended with PaperMod