Troubles w/ ScalaTest suite-scoped mocks in ScalaMock 3.x when using proxy mocks

SuiteScopedMockTest.scala

package com.example
 
import org.scalatest.FunSuite
import org.scalamock.scalatest.MockFactory
import org.scalamock.proxy.ProxyMockFactory

class SuiteScopedMockTest extends FunSuite with MockFactory with ProxyMockFactory {
  trait Foo {
    def foo (i: Int)
  }

  val foo = super[ProxyMockFactory].mock[Foo]
  
  test("suite-scoped Foo expects 1") {
    foo.expects('foo)(1)
    foo.foo(1)
  }

  test("the call with 2 should not be unexpected") {
    foo.expects('foo)(2)
    foo.foo(2)
  }
}