* Set and clear duplicate log references
* Export duplicate_log_reference_id for lettings
* Export duplicate_log_reference_id for sales
* Export duplicate_log_reference_id in xml
* Update existing duplicate log references
* Add missing sales deduplication steps
* Set duplicate_set_id straight on logs
* Do not update updated_at to prevent export
* Increment duplicate_set_id
* Update duplicates when they change sets
* Remove duplicates when deleting logs
* Create DuplicateLogReference
* Set and clear duplicate log references
* Export duplicate_log_reference_id for lettings
* Export duplicate_log_reference_id for sales
* Export duplicate_log_reference_id in xml
* Update tests
* Update existing duplicate log references
* Rename a field
* Add missing sales deduplication steps
* Set duplicate_set_id straight on logs
* Do not update updated_at to prevent export
* Increment duplicate_set_id
* Update duplicates when they change sets
* Remove duplicates when deleting logs
* correctly update duplicate set IDs when answer is changed through normal form flow
- We previously pushed logs into archives categorised by the quarter that they were created for.
- CDS requested that instead we push everything into a larger bucket seperated by FY.
This renames the case_log to lettings_log as everything we've written so
far has been geared towards lettings of social housing so it makes sense to
have the name describe this. This is also a precursor to adding in stuff for
sales logs (whatever shape that takes)
Co-authored-by: James Rose <james@jbpr.net>