$ git clone https://github.com/issueset/lychee-fragments-issue

$ cd lychee-fragments-issue

$ lychee --version
lychee 0.19.1

$ lychee --include-fragments --fallback-extensions html --no-progress --offline -v './**/*.html'
     [200] file:///private/tmp/lychee-fragments-issue/foo#invalid-id # ⬅️ This is unexpected
     [200] file:///private/tmp/lychee-fragments-issue/foo/index.html#valid-id
     [200] file:///private/tmp/lychee-fragments-issue/foo#valid-id
     [200] file:///private/tmp/lychee-fragments-issue/bar#valid-id
   [ERROR] file:///private/tmp/lychee-fragments-issue/bar#invalid-id | Cannot find fragment
     [200] file:///private/tmp/lychee-fragments-issue/bar.html#valid-id
   [ERROR] file:///private/tmp/lychee-fragments-issue/bar.html#invalid-id | Cannot find fragment
   [ERROR] file:///private/tmp/lychee-fragments-issue/foo/index.html#invalid-id | Cannot find fragment

Issues found in 1 input. Find details below.

[index.html]:
   [ERROR] file:///private/tmp/lychee-fragments-issue/bar#invalid-id | Cannot find fragment
   [ERROR] file:///private/tmp/lychee-fragments-issue/bar.html#invalid-id | Cannot find fragment
   [ERROR] file:///private/tmp/lychee-fragments-issue/foo/index.html#invalid-id | Cannot find fragment

🔍 8 Total (in 0s) ✅ 5 OK 🚫 3 Errors