Using "new" and "if" statements together - syntax related

I'm doing a code review for a coworker, and I saw the following statement pop up:

if ((someClass object1 = new someClass))
{
    // Do work
}

Does this statement say the same as the following?

someClass object1 = new someClass;
if (object1)
{
    // Do work
}

I'm just trying to see if they are equal so we don't get any bugs.