Ruby Issue Tracking System

01/11/2022

01:08 AM Ruby Bug #18470: Union of two identical sets produces a set with duplicate members

> The main problem is that `Set` doesn't expose a `rehash` method, so there's not really any way to workaround it. Maybe it should?
The rehash works. Should `add` also have a rehash?
```ruby
C = Struct.new :id
a = Set.new
f = C... smokinggun (John Weir)

01/10/2022

08:29 PM Ruby Bug #18470 (Closed): Union of two identical sets produces a set with duplicate members

We came across an issue where the union of two identical sets produced a non uniq Set.
We noticed this when upgrading from 2.7.1 to 3.1
See the attached test, the last assertion fails
``` ruby
C = Struct.new :id
a = Set.new
b... smokinggun (John Weir)