Memory is a strange thing, in that one can retain, in the subconscious, facets that he may not connect or remember to past events. That likely is what occurred here?
I always thought the lyrical differences were attributable to Rod including later stanzas of the song, but in a different order. Thank you for pointing this out to me.
They are inded both great songs!
Agree on both the greatness of the two songs and on the tricks our brains can play on us.