Two subscriptions with trial periods

I would like to make two auto-renewable subscriptions (in one "family" of subscriptions).

1) Monthly subscription + 1 month trial

2) Yearly subscription + 1 month trial (or, may be, 2 months trial)


My quastion:


If a user switches form a monthly subscription to an annual subscription plan will she or he get an additional trial period which it set up for an annual subscription plan?


I found a question which is almost similar to mine on the forum, but the question of that user has never been answered..

You can certainly do whatever you want if you switch to a non-renewing subscription.

Two subscriptions with trial periods
 
 
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