The Fureys changed some of the lyrics too. Some not so bad but they spoiled IMHO the line "countless white crosses in mute witness stand" by singing instead "The countless white crosses stand mute in the sand"

Saying that at a concert here in Kelso one of the audience members asked what he thought about artists changing the name and getting the lyrics wrong and his response was as long as he gets his royalties he didn't care. Maybe at least slightly tongue in cheek as I noticed later that he did give a bit of a negative reaction to the Jeff Beck/Joss Stone version.