templates.Exists cannot find layout

[jmooring]

hugo v0.93.0-DEV-92627190+extended linux/amd64

layouts/
├── _default/
│   ├── baseof.html
│   ├── home.html
│   ├── list.html
│   └── single.html
└── post/
    └── single.html

{{ templates.Exists "post/single.html" }} --> false
{{ templates.Exists "/post/single.html" }} --> false
{{ templates.Exists "layouts/post/single.html" }} --> false
{{ templates.Exists "/layouts/post/single.html" }} --> false

According to the documentation I expected the first one to work.

It also returns false for templates in mounts.

git clone --single-branch -b hugo-github-issue-9477 https://github.com/jmooring/hugo-testing hugo-github-issue-9477
cd hugo-github-issue-9477
hugo server

Then visit http://localhost:1313/tests/test-1/

[bep]

It's probably the base template that confuses things ... I guess I have only used this for partials.

[github-actions]

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