Indels mode of the find pattern. Wrong spin box behavior

From: http://ugene.unipro.ru/forum/YaBB.pl?num=1389010849/0#0
"Open any DNA file and open the search dialogue and use InsDel. When you search for a pattern with 6 letters like "ATTAAA" and click on the reduce button for the neccessary match the value jumps to 32% instead of 96%. When you search for 7 letters like "ATTAAAG" after clicking the button the percentage lowers to 30% and can't be changed anymore at all with the buttons."

I was able to reproduce it only in the 1.13.0 release. Make sure this is fixed in the trunk and branch.