  Random-lattice fermions have been shown to be free of the doubling problem if
there are no interactions or interactions of a non-gauge nature. On the other
hand, gauge interactions impose stringent constraints as expressed by the
Ward-Takahashi identities which could revive the free-field suppressed doubler
modes in loop diagrams. Comparing random lattice, naive and Wilson fermions in
two dimensional abelian background gauge theory, we show that indeed the
doublers are revived for random lattices in the continuum limit. Some
implications of the persistent doubling phenomenon on random lattices are also
discussed.
