[Issue 14595] [REG2.066] RefCounted data corrupted when in an AA

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14595

--- Comment #2 from Vladimir Panteleev <thecybershadow at gmail.com> ---
Alternative reduction:

//////// test.d ////////
struct S
{
    int* count;

    this(int)
    {
        count = new int;
        *count = 1;
    }

    this(this)
    {
        ++count;
    }

    ~this()
    {
        --*count;
    }
}

S[string] aa;

void main()
{
    aa[null] = S(42);
    auto p = null in aa;
    assert(*p.count);
}
////////////////////////

2.064.2: works
2.065.0: ICE
2.066.1: assert fails

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