The previous commit carried Self's default reading of Q17, that a subject
resolves at most once and a resolution is not itself a subject. The
operator ruled the other way: a withdrawn resolution is kept, attached to
the subject it withdrew, and the subject may then be resolved again.
So the matrix row comes back exactly as it was and
`the_resolution_matrix_is_admissions` returns to admitting the withdrawal
of a resolution. Only the comment above `matrix` is new, and it says whose
ruling this is and what it still needs: a second resolution of one subject
needs a key the first does not already hold, which is a sequence in the
leaf's resolution key and is mapped elsewhere.
`EmptyRepos` and the opener's epoch record stand.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
acd32f35cc