Fix bug with updating a deselected selection and void block selection issues (#1075)
Fix bug with updating a deselected selection and void block selection issues (#1075)

* If the selection has no anchorKey and focusKey (deselected) do nothing

* Fix bug related to selecting void blocks and non-void-blocks with a trailing void-block

* Update content.js

* Update content.js

ianstormtaylor/slate,ianstormtaylor/slate,6174/slate,isubastiCadmus/slate,AlbertHilb/slate,ashutoshrishi/slate