New test. Same locked
non-system disk, but encrypted with VeraCrypt this time. I took care to set the "Encrypt partition in place" option: "The entire selected partition and all data on it will be encrypted in place" (see screenshot).
MR, in Windows, sees it as unformatted but clones it alright to an external USB drive, even with Intelligent sector copy = Y.
The result is a VC encrypted volume, ready to go.p.s.
I tried both Intelligent sector copy and Forensic mode. Both cloning tasks, Intelligent and Forensic, took exactly the same time.
Therefore I guess they actually did the same thing and had the same effect.
When it comes to a locked
encrypted drive, you can still set the Intelligent sector copy option, but MR has to copy each and every sector anyway.
That's my understanding, at least.
Whatever copy mode I picked, the clone was encrypted and ready to be decrypted with Veracrypt.