@deecee 

Can you please confirm there are no external locations or volumes which can lead to this overlap of locations? what you actually have in "some_catalog.some_schema.some_table" and the "abfss://some-container@somestorageaccount.dfs.core.windows.net/" ?
Also just curious, are you saying a microbatch in your streaming application is expected to take more than an hour? Could you please clarify the use case if possible?