Flamingo's '_fields' meta stores only the list of field NAMES with
null values; the actual values live in separate per-field meta keys
prefixed with '_field_'. The old extract_fields() returned the
null-valued '_fields' array on the first branch and never fell
through to the '_field_*' collector, so every retro Telegram message
showed '(не указан)' / '(пусто)' for every slot.
Also collect '_from_name' / '_from_email' (set by Akismet) as
convenience mappings to 'your-name' / 'your-email' so the formatter's
standard slots are populated for most submissions even when the form
uses custom field names like text-211 / name_user.
Pilot on washanyanya.ru caught this (retro delivered empty skeletons).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Vladimir Bryzgalov