Lest We Forget," Hastie wrote in the post's caption.The since-deleted comment from Matulin reportedly read "Yeah you're a traitor", according to Nine newspapers.Roberts-Smith's legal representative issued a statement to SBS News on behalf of Matulin, saying: "It was a mistake to make that comment in a public forum and wasn't done with Ben's knowledge."Hastie, who in 2022 gave evidence in the Federal Court in the civil defamation case launched by Roberts-Smith against Nine newspapers, is expecting to be called as a witness in the criminal trial against the Victoria Cross recipient.Roberts-Smith lost the defamation lawsuit against the now Nine-owned Fairfax Media in 2018, with the judge determining that war crime allegations against him were, on the balance of probabilities, true When I've had to give testimony, I've done it under oath."I'm just very cautious, given that a fair trial, the presumption of innocence and a few other legal principles are at stake here."Opposition leader Angus Taylor defended Hastie's record when asked about the social media post."Andrew is a great Australian and he served our country with distinction, as have so many other great Australians," Taylor said."We've just had Anzac Day, where we commemorate the service and sacrifice of people for this country over a long, long period of time