Merging duplicate member accounts - preserve the attendance record please!

I just merged 2 duplicate member accounts. Each one had 1 record of attendance. Now the final account has NO record of attendance. Could we make sure the history is preserved when doing this please? I am fairly certain I selected bringing over all of the info, but even if I didn't bring over all the info from the now-removed account, the one the info was merged into should still have 1 record of attendance