Test env has latest data, Dev-1 env has no clean data.
We have lot of custom entities and relationships, so moving just the data from Test to Dev-1 env could be humongous task and error prone.
What if i restore/refresh Test env Dataverse DB to a new Dev-2 env and import known unmanaged solutions from Dev-1 to Dev-2?
This way, could we start using Dev-2 as my new Development env?