[base] Socket: make sure mode is set to None, too, when having close() invoked.
[base] Socket: make sure mode is set to None, too, when having close() invoked.

christianparpart/x0,christianparpart/x0,xzero/x0,xzero/x0,xzero/x0,xzero/x0,xzero/x0,christianparpart/x0,christianparpart/x0,xzero/x0,christianparpart/x0,christianparpart/x0,christianparpart/x0