SELECT ELEKTRA EUKS 7261 (-68) UK - Doors "Light My Fire" 3:00 stereo edit

A sampler that might be of interest to some Doors fans and collectors. When I bought it at a record flea a while ago I noticed that the label had "Light My Fire" at 2:52 as the mono single edit and since the LP is a 1968 UK stereo issue I expected a rechannel. But to my surprise it was a slightly longer edit with a true stereo mix - bass drum left, organ guitar right and vocals in the middle. It's the same speed as the mono single, but with an eight seconds longer instrumental mid-part continuing the crescendo for four more bars, clocking in at 3:00. Maybe old news to Doors specialists, but up to now I didn't even know this version existed and can't seem to find anything about it on the net. So I'm curious - was a US stereo originally prepared for the shorter edit and has it shown up elsewhere, or did they make it as a one-off for this release? If anyone here knows for sure please comment and tell. The sampler was UK only, also as mono (EUK 261). First had structured label as shown here and fully laminated cover. (SÄM*) (DÖÖW*)