Wallet permissions were filed by the origin Theseus reports, which is
https://name for both registries. Whoever registered a colliding name in
BNS inherited the real site's connection and its silent-payment allowance,
and the other way round. A page served from BNS is now filed, and named on
every approval, as bns://name.
Grants saved before this stay under https://name: a saved connection only
discloses an address and everything else still prompts, so the BNS site of
that name simply asks again. Payment allowances are reset once, because
nobody can say which registry's site an old one was granted to.
Needs a host that reports the registry; older ones behave as before.
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