The card's own htmx poll re-renders the whole table from the server every
5s, always starting fresh at "relative" -- so a toggled-to-absolute cell
snapped back on the next poll. Each button now has a stable id
(started-{run_id}-{attempt}, or started-vm-{vmx} on an unmatched-VM row);
app.js remembers which format was showing per id and re-applies it to the
fresh button after every swap, rather than freezing the node itself (which
would also freeze its relative-time text, badge, duration, everything else
in that row).
Simone
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