If I use dconf-editor to change the way permissions display (how to change permissions appearance in 12.04) and then bring up the file/folder properties of something in nautilus (e.g., right-click a folder and select properties > permissions), sometimes the boxes for permissions under the Permissions-Tab have dashes in them, like so:
What do the dashes mean? I was expecting a checkmark/no-checkmark to signify enabled/disabled. But dashes?
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They also do not appear to be an instance of "Mixed States." For example, here is a screenshot of a folder that has one solitary file in it. Note the dashes under File Permissions:
Here is a screenshot of the file persmissions of that solitary file:
Why is a folder with just one file in it showing the dashes if dashes mean mixed content?