A multi-day event has a dot on every day it covers but only one bar, so the
dots away from its start had no counterpart. Untagged they stood still and
faded; tagged without a partner they flew in from the top of the grid.
Neither is an animation — the last commit swapped one for the other.
The expanded grid now places an invisible slice of the bar in each further
column it spans, keyed to that column's day. Every dot has a real place to
come out of and go back into, at its own column, so it drops out of the bar
above it instead of appearing from nowhere.
That makes the seating's anchored flag pointless again — every dot has a
partner now — so it and its tests come back out.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>