The hex-filter sanitizer covered ids/authors/#e/#p/#q but not the NIP-22
uppercase root-scope tags #E (root event id) and #P (root author pubkey).
Relays hex-decode those too, and the kind-1111 comment subscriptions query
by them, so an odd-length value bypassed the sanitizer and got the whole
REQ rejected with "uneven size input to from_hex" (dropping that
subscription's results). Add #E/#P to the sanitized fields.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
