I’m not sure what’s going on here yet, so I figured I’d say something here before opening a real bug report.
We updated our self-hosted installation from 5.3.3 to 5.3.6 (we are using docker, and there don’t appear to be any image tags for the intermediate versions) and now I’m seeing (what I assume to be) demo data appearing alongside our live data.
For example, these invoices which do not correspond to any real clients of ours:
Judging by the dates, I figured this is probably some demo data accidentally loaded by the update migration. Can we safely just remove these clients, or could the migration have corrupted some of our live data?