Responsa על יבמות 229:10

Q - Forced converts, after having reverted back to Judaism, reported that while they were still among the Gentiles, they saw the body of A who was killed, lying in front of his house. It was discovered that these converts, prior to their return, partook of non-kosher food, purely out of lust. On the basis of their testimony, is A's wife permitted to remarry?
A - Although these forced converts formerly partook of non-kosher food, they are believed to be telling the truth, since they have now returned to Judaism. Therefore, A's wife is permitted to remarry.