We're using the promoted builds plugin (https://wiki.jenkins-ci.org/display/JENKINS/Promoted+Builds+Plugin) in combination with the S3 plugin. We have multiple promotion processes (dev, stage, prod) and each one should upload its result to a different S3 bucket.
However, if one process succeeds and uploads the result to S3, it won't just upload to its own bucket, but also to the ones of the other processes. The destination buckets of the different phases are merged (also visible in the interface after saving the configuration).
We tried to use multiple S3 profiles (same access keys though) and that didn't help. The files are still being uploaded to the buckets of all promotion processes and not just one.