Proposal: Add a helper function to create a copy of a model instance

[hrushikeshrv]

Currently the documented way to create a copy of a model instance is by setting its pk to None and saving the instance again - see link. It also states that there is no built-in method for copying model instances.

Adding such a function was discussed in this ticket closed 12 years ago, but was not implemented. Instead, it was decided to just document the process. IMO, having a single function which would handle the copying of a model instance in all types of scenarios (deep/shallow copy, keep M2M or FK relationships, etc.) would be helpful, and django-extensions would be a good place to have such a utility function.