Renaming folder while downloading will mess things up

[raffaem]

1. Have a quite big remote folder, let's call it "A"
2. Start to sync it with maestral
3. While syncing, rename the folder on your local computer to "B"

Maestral will throw a lot of sync errors, and the "B" folder on your PC will be uploaded to Dropbox (so you will have the "A" folder, with full content, and the "B" folder, with the content synced up until when you renamed it)