OneDrive and git fought over my vault. Both lost.

Over two days my Obsidian vault appeared to delete itself, git recorded 146 file deletions that never happened, and OneDrive spawned 120 conflict copies of notes I had just restored. Not one byte of a note was lost. Every failure traces back to a single sentence: two sync systems each believed they owned the same tree, and each interpreted the other’s behaviour as changes to sync. I have written this shape of post before. RAID1 saved my data but not the state around it, and a trap I had published a warning about caught my own app the same day. This one belongs to both families: the data was never in danger, the state lied about it, and the limit that made it all worse was documented in a workbook I had read and dismissed as something that happens to other people.