Jango isn't a Star Wars character. He's only in the prequels and they're not Star Wars.

Star Wars is the original versions of the original trilogy films. Lucas rejected those (and thus broke with Star Wars) in the mid-90s when he made the Special Editions to be the definitive versions of the films replacing the originals. Since then he's been making stuff that has a wildly different mentality from Star Wars and is out of continuity with Star Wars, seeing as it's in-continuity with his invalid 1997 and 2004 special editions. All his newer stuff (1999 onwards) not only has a mentality and story at odds with Star Wars, it is also founded on his mid 90s break with Star Wars when he rejected the real Star Wars. By rejecting Star wars he ensured that by very definition all his later work was not Star Wars. There hasn't been any new Star Wars films since 1983.

Hence there is only one Fett. His name is Boba and he has nothing to with Temuera Morrison or Daniel Logan. He is also voiced by Jason Wingreen. He was never a little twerp kid and his father never claimed to be a simple man trying to make his way in the universe.