  In 2007 Huneke and Wiegand announced in an erratum that one of the
conclusions of their depth formula theorem is flawed due to an incorrect
convention for the depth of the zero module. Since then, the deleted claim has
remained unresolved. In this paper we give examples to prove that the deleted
claim is false, in general. Moreover, we point out several places in the
literature which relied upon this deleted claim or the initial argument from
2007.
