WooCommerce Subscriptions

Currently subscriptions end any free trial user is on when user switches subscription to prevent the user from getting additional free trial. That’s fine but it can end original free trial prematurely. Let’s say user was offered a free month. A week later he decides to upgrade his plan. His free trial is effectively reset and he starts being charged. If he was offered a free month he should still be getting a free month and only than being charged. A side effect of this is user being charged more than the highest tier. For example, lets assume three subscriptions with the same recurring monthly price (x) and different sign-up fee and a month trial period. The sign up fees are a, b, and c, a being the lowest, c being the highest. If the user purchases c he’s charged only c in the first month. If the user purchases b and after a week upgrades to c, he’s charged b + difference between b and c + x (the recurring price), as his trial was ended at the time of the upgrade and he was put on recurring charges. So effectively in the first month they paid more by x which just doesn’t make any sense as it’s more than the highest tier.