This was reported by rickf.nasa.gov on testers-list:

"we should add the capability on the dependency resolution screen to
selectively accept or reject each of the listed items.
Currently if you miss a dependency when cutting out something you don't
want on your system you must go back, find the item, uncheck it, return to
the dependency resolution screen, etc. 
Would be quite helpful to be able to choose to accept a resolution or
reject (and have the problem package deleted from the install list)."