Single items can be permanently removed from drop-down lists by pressing Shift-Delete. SAMBA is particularly difficult in this respect. To see how you can set those properties with TortoiseSVN, read our docs here.
Finally, right click on Group. Which means you will get a corrupted working copy and you then will lose data! In our example above Modified.
The Windows icon cache is a fairly buggy creature.
You have to make sure that those versions match each other in the first two digits.