// a.sx authors `greet`. Its own `from_a` calls `greet` bare — under fix-0102c
// that binds a.sx's OWN author (own-author wins), even though b.sx also
// authors `greet` and the first-wins merge keeps only one in the merged scope.
greet  :: () -> s64 { return 1; }
from_a :: () -> s64 { return greet(); }