Dependent/Independent can not be selected for Depence Propagation relationships

Similar Issue to #15 (closed):

https://www.dropbox.com/s/9k2u0s9ccr7jgdk/Screenshot%202015-06-22%2011.43.47.png?dl=0 https://www.dropbox.com/s/qhctvz0ohabffun/Screenshot%202015-06-22%2011.57.52.png?dl=0

Can be avoided with the same workaround as #15 (closed)