Seatlock question:

So if you're locked into your aircraft (usually) for one year from indoc, and follow on seat locks are 2 years.....if you stay in your indoc assigned acft for let's say...18 months....you could still bail to another acft w/o penalty, right?

In other words, if you don't leave you're indoc jet after 12 months, you don't automatically incur a 2 yr seat lock on your indoc jet, correct?

Acft choice might be changing and I want to make sure I look before I leap. Thx!