It's more than the "Matter of Opinion" at the end of the latest video that gives their game away.
At the end of the first chorus, I hear "Johnny" mess up getting back to the verse riff. In each chorus to verse, the same mistake is made.
Looking at the spectral selection we see below two chorus' images. The top is the first one, bottom is another later on. The left arrow indicates where the final riff of the chorus ends and the right set of arrows show where "Johnny" makes the mistake.
As you can see, even amidst added distortion and reverb (trails off at end of recording), we can see sections of guitar have been cut and pasted to form the structure of the song.
We also see a very obvious cut (just after 3:06) where the verse riff becomes a version that rings out at the end as "Johnny" descends into playing "reel around the fountain" and a taster of "matter of opinion".
As a matter of fact, one...