merge revision(s) 04ec07794657cd2444ecb001a522b9df2db1b90a: [Backport #21038]
Preserve `errno` in `rb_fiber_scheduler_unblock`. (#12576) [Bug #21038] Co-authored-by: Julian Scheid <[email protected]>
merge revision(s) 04ec07794657cd2444ecb001a522b9df2db1b90a: [Backport #21038]