Group by Tag has always been there, and every document was Untagged: tags come
from the frontmatter `tags:` key, nothing but hand-typed YAML ever set one, and
no generated document mentioned the key. Both templates did pass `tags: []` —
`render_frontmatter` dropped every empty value on the way out, so the one place
a user could have learned tags exist never printed. An empty list prints now. An
empty string still does not: `owner:` teaches nothing the template already says.
The chips under the title become the editor. Each carries a cross, and a `+ Tag`
chip opens a field that takes a whole list — "web, prod" is two tags — and
refuses one the document already carries whatever its case. It writes straight
through like starring: a chip clicked off is not a draft of the document.
The body owns tags, the column caches them, so the store rewrites the block and
saves the body rather than patching a field the next body save would overwrite.
`withFrontmatter` would have done it in one line and round-tripped everything
else through the YAML dumper — `created: 2026-09-07` comes back a full timestamp,
because that is what the date parsed to. So `withTags` replaces that one entry,
inline or block list, and leaves the other lines byte for byte as written.
`test_frontmatter_omits_empty_values` asserted the dropping this changes; it is
renamed and now asserts the empty list survives.
ha-relevant: yes
Pouzor
94f42cf9c5