Tree Support Fill At Base Issue

[LindsayPatten 1]

When the base of a tree support is on the build plate it doesn't have any fill.  When the base is on the model it gets filled, and gets printed directly onto the model with no gap, and this fill is several layers thick.  The muli-layer thick fill on the model makes it impossible to remove from the model whereas the lack of fill on the build plate means it will most likely detach from the plate during printing unless you use a brim or raft.  Is this a bug or is there some setting that will prevent the fill on the model and/or add it on the build plate?

[LindsayPatten 1]

Since no one has offered a way to avoid this, should I file this as a bug?