[Issue 24860] array appending can create stale memory references

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24860

--- Comment #2 from Steven Schveighoffer <schveiguy at gmail.com> ---
Yes, this affects the built-in array operator.

I'll try and see if I can create a test case for it.

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