docs: correct the claim that a paren-bearing value is unrepresentable

The spec listed from:(((( among the queries the parser must reject, and
the plan's Task 6 asserted that rejection. Probing the built parser shows
it accepts the query as a From row whose value is the literal text, and
compiles it back byte for byte.

That is correct behaviour, not a leak in the strictness rule. notmuch
reads those parens as characters to search for rather than as grouping,
so the query is meaningful and the row displaying it tells the truth.
Rejecting it would buy nothing and would push a representable rule into
text mode.

The distinction the documents were missing: a parenthesis inside a VALUE
is not a shape question at all, only a parenthesis in grouping position
is. Restate both documents accordingly, and replace the assertion with a
round-trip one, which is the property that actually matters here.

0 files changed, 0 insertions, 0 deletions