A snapshot push can drop the band under a resting pointer (compaction,
tail slide out of the served window) without a mouseleave, and the dead
key exact-matched nothing: the whole strip sat dimmed with nothing lit
— the very state the open-category pin's breakdown gate rules out.
Honor a band hover only while its key names a rendered band, so the
mirror/pin fallbacks resume underneath.
Also correct the hover-link comment: DNA hovers stay on the bar and
never report back to the overview (the link is one-way in DNA mode,
as the existing test already pins).
Bowen Liang
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