Bug when exporting playlists including "." + remember location

hi! 

When exporting playlist where I have added time formats including period-signs/dots the name will not follow more than one dot. 

So trying to export playlist 
2016.11.05 art of sound.m3u8

it will be suggested to save as 
2016.11.m3u8

When I remove the dots from the name it works as intended. 

I couldn't find any way to set default destination folder either, and the last used location was not remembered, only redirecting me to Documents-folder. 

Cheers!