Do I need a re-entry permit if I have a multi-entry non O-A visa in Thailand?

Example:

This is a year-long, multi-entry Non-O-A. It has an enter before date of 12 May 2014. it is good for unlimited entries to the country up to that date with every entry getting the holder stamped in for another whole year.

If the holder of that visa exited and re-entered the country just prior to that date they would have gotten stamped in for a completely new calendar year

BUT

if they wanted to exit/re-enter the country after the 12 of May 2014 in order to keep their "admitted until" stamp alive they'd need to buy a re-entry permit before they left the country or their stamp would cancel when they exited the country.

@Richard ****

yes, the multiple entry part of a year-long O-A visa is only good until the "enter before" date on the visa itself.

IF you get the "free second year" in order to keep that stamp "alive" you'd need a reentry permit

If you're on an Extension of Stay it's needed. Multiple-entry visas allow multiple entries.

Isn’t it needed in the second year of the non O-A?