better nesting support for collapsible blocks--following proper flow across branches
better nesting support for collapsible blocks--following proper flow across branches

max630/turtleart-hacks,walterbender/AmazonasTortuga,walterbender/turtleflags,AlanJAS/turtleart,walterbender/turtle3D,max630/turtleart-hacks,walterbender/turtleconfusion,walterbender/turtleart,walterbender/turtleartmini