Equality for Bitvectors constants

[daniel-raffler]

Hello everyone,
in SMTInterpol two Bitvector constants only seem to be equal only when they were created from the same String object:

@Test
public void testBinary() {
  Theory theory = new Theory(Logics.QF_BV);
  Term b1 = theory.binary("#b1111");
  Term b2 = theory.binary("#b1111");

  assertThat(b1).isEqualTo(b1); // Works
  assertThat(b1).isEqualTo(b2); // Fails
}

@Test
public void testHexadecimal() {
  Theory theory = new Theory(Logics.QF_BV);
  Term h1 = theory.hexadecimal("#xf");
  Term h2 = theory.hexadecimal("#xf");

  assertThat(h1).isEqualTo(h1); // Works
  assertThat(h1).isEqualTo(h2); // Fails
}

This is somewhat surprising as the same Test does work for reals:

@Test
public void testDecimal() {
  Theory theory = new Theory(Logics.QF_LRA);
  Term d1 = theory.decimal("0.1");
  Term d2 = theory.decimal("0.1");

  assertThat(d1).isEqualTo(d1); // Works
  assertThat(d1).isEqualTo(d2); // Also works
}

Could this be fixes so that Bitvector constants are considered equal when their String representation is equal?