Update src/lu.jl

Co-authored-by: Steven G. Johnson <stevenj@mit.edu>

Author: longemen3000

src/lu.jl

@@ -110,7 +110,7 @@ function lu!(F::LU{<:Any,<:StridedMatrix{<:BlasFloat}}, A; check::Bool = true, a
     copyto!(F.factors,A)
     lpt = LAPACK.getrf!(F.factors, F.ipiv; check)
     check && _check_lu_success(lpt[3], allowsingular)
-    return F
+    return LU{T,typeof(lpt[1]),typeof(lpt[2])}(lpt[1], lpt[2], lpt[3])
 end
 
 function lu!(F::LU{<:Any,<:AbstractMatrix}, A; check::Bool = true, allowsingular::Bool = false)