Sequential numbers aren't great because they change when an earlier
comment is archived. Parent comment/heading IDs should change less
often.
This also makes much more sense for disambiguating subsections,
e.g. a dozen identical ===Votes=== sections for a dozen proposals.
Bug: T264478
Change-Id: I466454984fd919ebef35f2b37ddb5d86dc842996
Our threads now also contain all replies to their sub-threads.
This is similar to how sections work in MediaWiki, where the parent
section also contains the content of all the lower-level sections.
We're going to need this for notifications about replies in a thread.
Bug: T264478
Change-Id: I241fc58e2088a7555942824b0f184ed21e3a8b6f
Previously, only comments could have IDs, because we only needed IDs
for replying. But we might also use them for notifications soon.
Bug: T264478
Change-Id: I1bcad02bf17ab54bc5028a959543c10f0430836b
The wikitext parser outputs `<p><br></p>` for empty paragraphs, so we
need to ignore `<br>` tags when searching for an "interesting" node
that marks the beginning of a comment. Otherwise the empty paragraphs
mess up the detection of indentation levels.
Bug: T264116
Change-Id: I84a97ab577baa7336b78935ccdc48041ecfc231a
This is primarily to cover the handling of localised digits,
which previously wasn't being tested, leading to T261706.
Bug: T261706
Change-Id: I9de7f01f77e767e9048c85604b559af4bca0de91
