Okay, so there has been a little bit of chatter about this in the past, and I have yet to see an official ruling on this one:
Bronze weapons are basically identical to steel, except they have the fragile quality. So we will focus on a bronze short sword.
Now under the Fragile heading, we get this line (emphasis mine):
Masterwork and magical fragile weapons and armor lack these flaws unless otherwise noted in the item description or the special material section
Bone items have some specific rules that remove the fragile trait, and those imply the second option, but nothing in the fragile description or the description of bronze (or short sword for that matter) says that the fragile trait is removed, only that the item lacks "these flaws", which as a plural, leads me to believe that it is referring to the flaws conferred by the fragile trait, not the singular flaw that is the fragile trait. And of course the fact that the sentence actually starts with the phrase "magical fragile weapons", which seems to be the wrong wording if ruling 2 were used. In that case, I would assume that the language would read like this instead:
Items that are masterwork or magical do not possess the fragile quality, unless the description of the item or special material reads otherwise.
Still, the first option makes the special text in the bone section somewhat pointless.
Aside from quoting material from UC and the UEG, can anyone offer insight into this?
Edit: And while I am not trying to be a total rules lawyer about this, it is ultimately for PFS, so while either works fine as a personal ruling, I am actually looking for a hard set of rules so I don't waste money on my PFS character.
I would say it is Option 1.
Because otherwise you lose a feat to use.
Plus you can only use the feat once with the weapon. At least until you can repair it.
Option 2 just screws over players who take the feat.