[Issue 21989] [REG 2.096] Double destruction of new'ed aggregates since `-preview=dtorfields` became the default

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21989

moonlightsentinel at disroot.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[REG 2.096] Double          |[REG 2.096] Double
                   |destruction of classes      |destruction of new'ed
                   |since `-preview=dtorfields` |aggregates since
                   |became the default          |`-preview=dtorfields`
                   |                            |became the default

--- Comment #3 from moonlightsentinel at disroot.org ---
Not restricted to classes, also affects GC-allocated structs

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