Follow-up to #260: When picking up from SSR, no elements are marked with `_component`/`_componentConstructor` and thus none match via `isSameNodeType()`. When this happens, fall back to attempting to re-use elements in-order.
Follow-up to #260: When picking up from SSR, no elements are marked with `_component`/`_componentConstructor` and thus none match via `isSameNodeType()`. When this happens, fall back to attempting to re-use elements in-order.

neeharv/preact,developit/preact,developit/preact,neeharv/preact,gogoyqj/preact