Bug: has_keyword() adds all instead of nothing if the keyword does not occur

[bundfussr]

If a reference section is created using has_keyword() and the keyword does not occur, all functions are added to the section.
For example

- subtitle: BDS Derivations
  contents:
  - has_keyword("der_bds_gen")
  - has_keyword("der_bds_findings")

generates a section with all functions if the der_bds_gen keyword isn't used by any function. The issue occurs only if there is another entry in contents: which is not empty. I.e.,

- subtitle: BDS Derivations
  contents:
  - has_keyword("der_bds_gen")

creates an empty section as expected.

[maelle]

Thanks for reporting. Would you have time to create a minimal reproducible example, for instance a package with a few manual pages and this configuration? https://pkgdown.r-lib.org/CONTRIBUTING.html#package-reprexes This would save time on this end. No worries if not. 😸

[bundfussr]

For a small example see https://github.com/bundfussr/mybugpkg. The function a_fun() is displayed in both sections of the reference page. If the line

  - has_keyword("der_bds_gen")

is removed from _pkgdown.yml, this does not happen.

[maelle]

Thank you! I'll explore more later but can now easily reproduce the bug. 🚀 🙏

[maelle]

draft PR #2243