Switching from a NIP-46 account to another account (e.g. an nsec account) failed to
switch BACK with "No remote signer session is stored on this device." Root cause:
disconnectRemoteSigner() defaults to keepStored:false and calls the no-argument
clearStoredNip46Session(), which removed the entire per-account v2 map
(bitvid:nip46:sessions:v2) — deleting EVERY saved account's session, not just a
teardown of the live connection. Four nip46Connector connect/handshake-error paths
call the same no-arg clear, so any connect hiccup also nuked all sessions.
Fix: the no-argument clearStoredNip46Session() now clears ONLY the legacy v1
"last-connected" default slot and leaves the per-account v2 map intact. A specific
account is still forgotten via clearStoredNip46Session(pubkey) (unchanged), so
removing one account is unaffected while switching between saved NIP-46 accounts
survives connection teardown.
Spec correction: the prior test asserted the buggy "no-arg clear wipes everything";
replaced with the corrected behavior + a switch-away/switch-back regression.
Test: tests/nip46-multi-account.test.mjs (7). Lint + build green.
NOTE: this prevents future wipes; a session already deleted by the bug must be
reconnected once (Login → remote signer) — after which switching persists.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
