Comparing variants

[rumbu via Digitalmars-d-learn]

Comparing integer signed and unsigned variants will result in 
error:

import std.variant;
void main()
{
  auto a = 11;
  auto b = 10u; 
  assert(a > b);
        
  Variant va = 11;
  Variant vb = 10u;
  assert(va > vb); //error
        
}

std.variant.VariantException@std/variant.d(1309): Variant: 
attempting to use incompatible types int and uint

Is this intended behaviour? I'm asking because the rest of 
arithmetic/equality operations are working as expected, only 
opCmp throws.