[Issue 20132] segfault on fiber.call() in release mode

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20132

--- Comment #1 from JR <zorael at gmail.com> ---
That's supposed to be the current 2.087.1, not 2.078.1. My apologies.

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