fix update

Author: ffreyer

src/primitives/rectangles.jl

@@ -304,6 +304,7 @@ end
 Return `true` if any of the widths of `h` are zero or negative.
 """
 Base.isempty(h::Rect{N,T}) where {N,T} = any(<=(zero(T)), h.widths)
+Base.isnan(r::Rect) = isnan(origin(r)) || isnan(widths(r))
 
 """
     union(r1::Rect{N}, r2::Rect{N})
@@ -341,6 +342,8 @@ function update(b::Rect{N,T}, v::VecTypes{N,T2}) where {N,T,T2}
 end
 
 function update(b::Rect{N,T}, v::VecTypes{N,T}) where {N,T}
+    isnan(b) && return Rect{N, T}(v)
+
     m = min.(minimum(b), v)
     maxi = maximum(b)
     mm = if any(isnan, maxi)