#5417: Only Shadow material gave shadow outside of Spot bundle #5414: Material Nodes: sockets without input were always treated as single value inputs, ignoring color or vector. (Caused by commit to do automatic conversions of socket links). #5420: When reading with old Blender a new file that has a new window type, saving it over, and read back in current Blender, the window type should be reset to EMPTY, because all its data got lost.