Is this bug reproducible?
Which devices did this bug appear on and is it reproducible on any devices?
I've tested this on iPhone 5c.
A quick summary of the bug:
When syncing via Dropbox, editing/adding an item doesn't trigger a sync. Haven't tried with other sync methods since I don't use them.
Detailed Step-by-step instruction on how to reproduce it:
With Dropbox syncing set up...