The dropbox watch failed with "no matching releases" on some runs
(e.g. actions run 37236931512). It is not the network: Dropbox's download
redirect sends a share of requests to a newer build the pattern rejects
on purpose. On 2026-10-04, 96 of 100 HEADs ended at
dropbox-lnx.x86_64-272.4.3798 and 4 at 274.3.4801, which is not an x.4.y
stable build. The redirect provider made one probe, so one unlucky
answer failed the whole watch.
It now probes up to five times and keeps the first final URL that
matches, and curl gets --retry 2 as Fetcher.file already has. Live,
100 discovers against Dropbox all found 272.4.3798 in 103 probes. Two
tests cover a rollout answer before the stable one and every probe
missing.
Emir Beganovic
811a149728