Hmm. Good question. Well spotted.
I wonder whether the band will see any money from this.
I've never really been sure what the legality of this particular bootleg is. It's often referred to as 'semi-official' on websites (whatever that means), but that might just be sellers trying to legitimise the sale of it.
There have always been rumours that Rob deliberately leaked the tapes for the RCA tracks (i.e. tracks 1-11) into the hands of bootleggers. I'm not sure if this is correct and, if so, what his reason for doing this would be. The tracks are a bit of a mess, with various effects added (apparently) by non-band members. I can't see they would've enhanced the band's (already legendary) reputation.
Joy Division Central did some excellent work researching this bootleg and its many variants here:
https://www.joydiv.org/warsawlps.htm
https://www.joydiv.org/w2cd.htm
I've definitely got the bootleg twice on CD (the 'baby cover' version and one with a faux-Unknown Pleasures sleeve). I've probably got at least one of the LPs in storage too.