Could you explain please, why these two inverted quaternions are not equal:

```
Vector3 ev = new Vector3(x,y,z);
Quaternion q = Quaternion.Euler(ev);
Quaternion iq1 = Quaternion.Euler(-ev);
Quaternion iq2 = Quaternion.Inverse(q);
if (iq1 != iq2)
{ Debug.LogWarning(" =( "); }
```

This warning prints every frame.

I expect, quat. from inverted Euler angles should be equal to inverted quat. from original Euler.