Actually i misspoke, the change we made in 3.1 was to prevent undesired splitting of albums like compilations, rather than preventing undesired merging of albums that appear identical and only separated by folder paths. Sense tends to look more at metadata than folders.
At the moment, only using the browse by Folder would reveal the fact you have the two versions in different locations. But Sense will not go as low level as barcodes or EAN codes to analyse points of difference. If the resolution, format, artist and album names, and year of release are all the same across the tracks then Sense will treat them as the same album.
There's no shortcut around this I'm afraid, my suggestion is to go into Sense and go to the top-right corner...