Dear Maintainer,

   * What led up to the situation?
I opened the configuration of Deja Dup. There I clicked on the lists for
including and excluding directories.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
I entered new directories to include and exclude.

   * What was the outcome of this action?
It worked, but after visiting the lists again in both cases the newly added
entried were doubled. After removing the double entries and visiting the lists
again the double entries showed again.

   * What outcome did you expect instead?
Single entries.