It looks like camel_store_get_folder often returns instances with a refcount of two. 

While the folder camelobject that was once asked for, using the same get_folder method on the store instance and the same folder-id, got unreferenced (for sure).

I have to unreference it in a while ref_count>=1 loop cause of this :(.

It might be a bug that I introduced myself. If that's the case, I will soon close this bug myself. I'm planning to create little test-cases and/or unit tests for this soon.

I also have to cancel the camel-operation if I want it to be fully cleared (the memory of the folder instance) while the folder is loading and I destroy the folder during that event. For example:

The folder is loading, the user decides (while loading the folder) to remove the account from the configuration. So now my code has to start destroying folder instances. This wont work for the folder being loaded (it will not freeup the memory, but the refcount will be zero -- measured with valgrind --) until I launch a forced cancellation on the operation.