Find me a source that there’s an Issur of Hachanah from Chol Hamoed to a weekday. Here’s a hint, you won’t find one.
Sam2 & ckbshl:- Listen to CD ROM #185 by Shalheves:- “Kedushas Chol haMoed:- Its Obligations and Pleasures” by Rebbetzen Vital Kalmanowitz.