JPEGTRANS or rotate: setting of "-exif_orient"

[Peter2]

To I understand it correct that the usage of "JPEGTRANS" or "rotate" does not modify the setting of "-exif_orient", and it has to be modified separately?

[xnview]

Lossless rotation modify the EXIF Orientation field

[Peter2]

Lossless rotation modify the EXIF Orientation field

But the normal "rotate" does not?

[xnview]

Lossless rotation modify the EXIF Orientation field

But the normal "rotate" does not?

-rotate yes, not modified

[Peter2]

Thanks.
As mentioned before it would be really helpful for all user when these "side effects" would be explained n the documentation of nconvert.