immutable(int[]) a = [1,2,3];
	assert(!is(typeof({a[0] = 0;}))); // cannot change elements
	assert(!is(typeof({a = [1,1,1];}))); // cannot rebind

	// but I'm allowed to sort in place...
	a.reverse;
	assert(a == [3,2,1]);

simendsjo:

> 	// but I'm allowed to sort in place...
> 	a.reverse;
> 	assert(a == [3,2,1]);

It's a known bug, already in Bugzilla.

Bye,
bearophile