The renewal loop re-posted the challenge every time it polled and found the
authorization still pending. RFC 8555 section 7.5.1 has the client post a
challenge once to say it is ready and then poll; a server that has already
moved the challenge to "processing" refuses a second post, and pebble
answers 400 malformed, which failed the whole renewal.
Verified against pebble: the 400s are gone and the client polls. The suite
still can't finish on this machine, because pebble never reaches the test
server to validate the challenge; that path is the environment, and the
runbook now says so.
Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 117 in 50 files
Dangling module declarations removed: 5
Cargo edits turning enterprise off: 14
Verification: clean
Enterprise feature gates left for rebuilt features: 19 in 18 files
Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.