pass zero test

fixed_wide/src/fixed_wide_traits.rs

@@ -73,7 +73,7 @@ impl<const CHUNKS:usize,Frac:Unsigned> Fixed<CHUNKS,Frac>
 			bits:BInt::<CHUNKS>::ONE.shl(((((CHUNKS as i32*64-Frac::I32-(self.bits.leading_zeros() as i32)+1)>>1)+Frac::I32) as u32).saturating_sub(1)),
 			frac:PhantomData,
 		};
-		let mut result=pow2;
+		let mut result=Self::ZERO;
 
 		//cheat to make the types match
 		let wide_self=self.wide_mul(Fixed::<CHUNKS,Frac>::ONE);