It could not. Each part of Root location fetches its own status, so the block
had no way to know whether it was finished until its children had mounted and
reported — meaning it painted open and then folded away, on every load. That is
not a rendering problem to tune: the information genuinely was not there yet.
So one request answers the three bits first, and nothing renders until both it
and the path have arrived. The children still own their detail and still report
changes upward while the block is open; the summary only seeds the opening
state. Two sources for one fact with a clean division — the summary is what is
true on ARRIVAL, the callbacks are what changes while somebody is looking.
`settledNow` picks between them: the summary while nothing has reported, the
live value once anything has. Using the live value throughout would open the
block for exactly the gap between the summary landing and the children
answering, which is the flicker with extra steps.
The summary walks the media tree, so it is deliberately not polled, and it skips
the walk entirely when there is no media folder to walk.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
pastilhasandClaude Opus 5
e621bc761d