Regress in 3.12.x breaks links to headers that themselves contain links

[soul-codes]

Test case

This is a [link to a linked header](#this-header-is-linked)

# This header is [linked](#somewhere)

## Somewhere

This reports a deadlink for #this-header-is-linked for 3.12.x but a live link for 3.11.2.

Thanks for this wonderful tool! 🙏 Happy to dig and PR if desired.

[per1234]

This was fixed by b2beaa0 (https://github.com/tcort/markdown-link-check/pull/328).

$ printf 'This is a [link to a linked header](#this-header-is-linked)\n\n# This header is [linked](#somewhere)\n\n## Somewhere' > /tmp/foo.md

$ npx github:tcort/markdown-link-check#3c31a25 /tmp/foo.md  # Last bad commit.

FILE: C:/Users/per/AppData/Local/Temp/foo.md
  [✖] #this-header-is-linked
  [✓] #somewhere

  2 links checked.

  ERROR: 1 dead links found!
  [✖] #this-header-is-linked → Status: 404

$ npx github:tcort/markdown-link-check#b2beaa0 /tmp/foo.md  # First good commit.

FILE: C:/Users/per/AppData/Local/Temp/foo.md
  [✓] #this-header-is-linked
  [✓] #somewhere

  2 links checked.

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This issue has been marked as stale because it has been open 60 days with no activity. It will be closed in 30 days unless the stale label is removed or someone adds a comment.

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This issue was closed because it has been marked as stale for 30 days with no activity.