SList container problem

[ted via Digitalmars-d-learn]

have upgraded from 2.066.1 to 2.068.0, and have a change in behaviour:

import std.container: SList;

void main()
{
    SList!int tmp;

    tmp.insertAfter( tmp[], 3 );
}

used to work happily with dmd2.066.1, causes assert 
(core.exception.AssertError at std/container/slist.d(57): Assertion failure) 
in 2.068.0 (also 2.067.1).

There was a change in slist.d in 2.067. Am I no longer able to start from 
an empty list?

--ted