Click und unclick Stones in Mahjongg

Hello,

my Mother plays Mahjongg for years now.

I installed today 12.04 and something is new, my mother telled me.

If you click a stone and the next stone is no matching stone, nothing happens. The first stone is still active.

In the last years, the first unmatching stone was unclicked and the next stone was clicked and active.
Until you click two matching stones and they disappear.

Please change it like it was for years, or my mother will kill me :-D