Broken MIME types

Double clicking file in Nautilus gives:
"The filename "foo.txt" indicates that this file is of type "txt document". The contents of the file indicate that the file is of type "plain text document". If you open this file, the file might present a security risk to your system.

1) removed all files from ~/.local/share/mime/application and ~/.local/share/mime/packages
2) sudo update-mime-database ~/.local/share/mime
3) removed affected file types from ~/.local/share/mime/globs