`git checkout master` after `git fetch origin master` switches to the
LOCAL master -- the one actions/checkout left at this run's own SHA --
not the ref just fetched. A nightly build takes long enough that master
has usually moved by the time it finishes, so the manifest gets its new
entry prepended to a stale copy and the push is rejected:
! [rejected] master -> master (non-fast-forward)
Run 1045 failed this way, and the log is unambiguous about it: "Your
branch is behind 'origin/master' by 1 commit, and can be fast-forwarded"
appears one line before the commit that could not be pushed.
`checkout -B master origin/master` is the fix, and it is right rather
than merely convenient. This step appends one version entry to the
manifest as it stands on master, so the base it edits has to be master.
Editing the copy this build happened to start from and then forcing it
through would silently drop whatever landed in between.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
dtourolleandClaude Opus 5