Equality is not working if Ref Object defined in a block scope

[al6x]

The equality operator == works incorrectly if the ref object is defined inside of a block: scope.

In the example the result of @[a] == @[b] would be false, but if the block scope removed, it will be true.

Example

playground

if is_main_module: # or block:
  type User = ref object
    id: int

  proc `==`(a, b: User): bool = a[] == b[]

  var a = User(id: 1)
  var b = User(id: 1)
  echo a == b       # ==> true
  echo @[a] == @[b] # ==> false - Error!

Nim Compiler Version 1.4.6 [MacOSX: amd64]
Compiled at 2021-05-06
Copyright (c) 2006-2020 by Andreas Rumpf

active boot switches: -d:release```

[timotheecour]

sounds like duplicate of #13747

ok to close this as duplicate?

[al6x]

Sure, thanks!