Selection box doesn't work as intendent

[mateuszbasiak]

Together with @JKolodziejczyk and @apospieszny, we have been testing NanaZip as the final project for the Software Testing course at Jagiellonian University. Here is one of our results:

Selection box doesn't select files properly:

Expected result: All files should be selected

Version: NanaZip 1.0 x64