Talmud for Yoma 175:5

Rebbi Jacob bar Aḥa, Rebbi Yasa in the name of Rebbi Joshua ben Levi: Qeri is only from sexual intercourse. Rav Huna said, even if he saw himself enjoying in his dream. They wanted to say, only from a woman. Rebbi Jonah and Rebbi Yose, both of them say, even from something else. There (Mishnah Yoma 8:1) we have stated: Eating, drinking, washing, anointing, wearing shoes, and sexual intercourse are forbidden on Yom Kippur. And it was stated in that respect: Men with qeri immerse themselves secretly in their normal way on Yom Kippur¹⁶⁷In Tosephta Kippurim 4:5 and Babli Yoma 88a the reading is: Men with qeri immerse themselves normally on Yom Kippur; one speaks of a full immersion and “in secret” is not mentioned. The Tosephta seems to be a Babylonian formulation. (The entire paragraph is also found in Yerushalmi Yoma 8:1).. Does this not contradict Rebbi Joshua ben Levi since Rebbi Joshua ben Levi says, qeri is only from sexual intercourse? Explain it if he had intercourse on the previous day and forgot and did not immerse himself. But it is stated: It happened that Rebbi Yose ben Ḥalaphta was seen immersing himself secretly on Yom Kippur. Can you say about that holy body that he forgot¹⁶⁸Hence, the interpretation of Rav Huna is incorrect and that of Rebbis Yose (the Amora) and Jonah is correct.?