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Remaining findings from the same triage pass. None are security
relevant; each produces a wrong user-visible result.
- greeter: treat rollout_started_at as UTC. It is written by SQLite
CURRENT_TIMESTAMP, but datetime.timestamp() read the naive value as
local time, shifting the backfill cutoff by the host's offset (7h on
PT). Users who posted inside that window were never marked as already
greeted and could be sent a welcome they should not have received.
- greeter: write greeted_at in SQLite's own format. The rollout backfill
used isoformat() while every other path used CURRENT_TIMESTAMP. "T"
sorts above a space, so ORDER BY greeted_at interleaved the two
formats wrongly, corrupting duplicate cleanup and the web viewer's
recently-greeted list.
- greeter: let an empty `channels =` disable the command. BaseCommand
reads an empty value as disabled-on-channels, but the greeter
collapsed "key absent" and "key present but empty" into one fallback
and kept greeting via monitor_channels.
- greeter: stop comma-splitting greeting text. channel_greetings split
entries on ",", so "Public:Welcome to the mesh, {sender}!" was stored
as "Welcome to the mesh" with the placeholder silently dropped. A
fragment now starts a new entry only when the text before its first
colon looks like a channel name, which keeps commas, URLs and clock
times attached to the greeting they belong to.
- wxsim_parser: match condition abbreviations longest-first. Substring
matching in dict order let RAIN shadow CHNC. RAIN, so five conditions
lost their "chance" qualifier (rain, snow, drizzle, t-storm, and
FAIR-P.C.).
- wxsim_parser: re-anchor "now" on each parse. current_date and
current_year were fixed at construction and wx_command builds one
parser at startup, so after a few days forecast dates rolled back a
year and staleness checks read permanently true.
- thesportsdb_client: hold the rate-limit read/sleep/write under a lock.
Concurrent callers read the same last_request_time, slept the same
interval and fired together, bursting past the 2.1s throttle. This
exposes an unrelated request fan-out problem in fetch_league_scores;
filed in TODO.md rather than fixed here.
- alert_command: stop duplicating the first incident. The tail treated
any single-line buffer as "header only" and appended incidents[0],
but messages after the first carry no header, so a final chunk holding
one incident had incident 0 pasted onto it. The same confusion inside
the loop also let a second incident be appended past the 130-character
limit.
- feed: reject non-positive poll intervals. -1 is truthy and was stored,
and the poller's `now - last_check >= interval` then treats the feed
as permanently due and re-fetches the URL every cycle; 0 was ignored
while still reporting success. The web viewer, which is the primary
editor, had no validation at all, and a JSON null there raised a
TypeError that aborted the poll cycle for every feed rather than one.
feed_manager falls back to the default for rows written before this.
- transmission_tracker: age out confirmed transmissions that have
repeats. Cleanup removed only repeat_count == 0, so repeated records
accumulated for the lifetime of the process, which matters on a Pi
Zero. Repeat counts are already persisted to packet_stream, so the
longer 30-minute retention loses nothing.
- mesh_graph: weighted-merge avg_hop_position when promoting an edge.
Promotion overwrote the average with the single new observation, so an
edge averaging 2.0 over 4 observations became 9.0 instead of 3.4 and
skewed subsequent path scoring.
- multitest_command: show the path that ends exactly at the display LCP.
The suffix helpers are correct in isolation; the loss happens in the
cluster formatters, where _shrink_display_lcp refuses to shrink a
single-token LCP and the trunk then rendered as "96 ┐", meaning
"everything continues past here" and dropping the bare 96 route while
the header still counted it. Now uses the file's existing "├ common"
marker. Empty suffixes are also no longer handed to the nested
renderer, which mapped them onto the same [] as a route ending at the
inner LCP and drew a row for a route that did not exist.
- sports_mappings: stop shadowing seven unique team nicknames. In one
flat dict a repeated key silently drops the earlier team, so hawks
resolved to the NBA Hawks rather than the Seahawks alias it was added
as, blazers to Kamloops rather than Portland, and rockets to Kelowna
rather than Houston. First definition now wins for hawks, giants,
jets, rangers, kings, blazers and rockets; every shadowed team keeps
its unambiguous full-name alias. The 55 city and abbreviation
collisions (chicago, sf, la, ...) are genuinely ambiguous and stay
last-wins, now pinned by a test so a new collision fails loudly
instead of passing unnoticed.