Dashboard does not report backup warnings/errors

[adamretter]

See - eXist-db/exist#2767 (comment)

This is quite nasty as it leads the user to believe that everything worked fine and that they have a complete backup of their data, when in fact they may have nothing at all.

[JoernT]

@adamretter certainly a nasty problem. Any idea how to provoke warnings/errors for testing?

[adamretter]

@JoernT try and create a backup from a corrupted database.