------------------
- Purge cache command was only working for indexed columns
[keul]
- uuid was not provided when CSV upload feature was used
[keul]
- Prevent `BadRequest` exception when uploading the same file twice
[keul]
- Restored usage of labels, also with search
[keul]
- Fixed a bug with labels and batching: starting item were
skipped if a label from previous page was present
[keul]