I am using QGIS 2.18 and have a workflow that requires going offline with some of the data. My workflow is fairly simple:
- Go to Database - Offline Editing - Convert to Offline Project. Select the layers that will be edited offline.
- Edit the offline layers are required.
- Go to Database - Offline Editing - Synchronize
The sync process runs and is successful, but the result creates duplicate entries in the master (online) database for any of the features that were edited or created offline.
I have tried using SpatiaLite and PostGIS as my master (online, source, whatever you would like to call it) database, with the exact same results.