Unnecessary mock recreations in Spring test method

[sofurihafe]

Description

There are a lot of recreations of Injected mocks and mocks in Spring test methods.

To Reproduce

1. Generate tests for OwnerController in spring-petclinic.
2. Among generated tests there'll be ones with unnecessary recreations, e.g.

@InjectMocks
public OwnerController ownerController;

@Mock
public OwnerRepository ownerRepositoryMock;

@Test
@DisplayName("showOwner: IntegerValueOf -> return mav")
public void testShowOwner_ModelAndViewAddObject() throws ... {
MockedConstruction mockedConstruction = null;
        try {
                mockedConstruction = mockConstruction(...);
              ->OwnerRepository ownerRepositoryMock1 = mock(OwnerRepository.class);
                (when(ownerRepositoryMock1.findById(any()))).thenReturn(((Owner) null));
	      ->OwnerController ownerController1 = new OwnerController(ownerRepositoryMock1);
        
	        ...
        
        } finally {
	        ...
        }
}

Expected behavior

Already created variables must be used.

[sofurihafe]

Tried to revert #2151, it solved the problem.
Problems from set of 2104, 2107 and 2196 have the same issue. They cannot be solved by naive ref. equality for models.