Event::max_score starts at -1 and only AddPacket_ raises it. An event
closed before the event thread wrote a frame (a signal flap, a reload or
an alarm cancelled right after the event opened) sent MaxScore = -1 in
its closing UPDATE. Events.MaxScore is smallint unsigned, so in strict
SQL mode MariaDB refused the whole statement ("Out of range value for
column 'MaxScore'"): EndDateTime, Frames and DefaultVideo stayed unset
and the event looked as if it was still recording, while the video had
already been renamed to its final name.
Clamp the value to 0 in the closing UPDATE. The -1 start stays, so the
first frame still becomes the max-score frame.
fixes#5233
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
