Issue with struct invariants

[kdevel]

On Wednesday, 5 March 2025 at 16:58:18 UTC, Kirill Kryukov wrote:
> Is this a bug, or am I misunderstanding something?
>
> Compiled with "gdc -Og -o repro repro.d", using gdc (GCC) 
> 14.2.1 20240912 (Red Hat 14.2.1-3), on Linux.

Compiled your code with DMD v2.109.1, gdc (GCC) 11.3.0 and gdc 
(GCC) 12.1.0, using `gdc -Og -o repro repro.d` with the latter 
two: All executables ran without error.