is this a bug?

the call to join invalidates the "name" field of A:

 

----

import std.array;

import std.stdio;

class A{

  string name;

  this(string name){this.name=name;}

  alias name this;

  ~this(){

    writeln("deleting");

  }

}

void main(){

  auto a=[new A(`foo`)];

  assert(a[0].length);

  writeln("1");

  auto temp=a.join(" ");

  writeln("2");

  assert(!a[0].length); //a[0] is now empty!

}