When, after an estate in real estate has been created by grant or devise upon express condition, the reversion, before breach of the condition, becomes vested in any person other than the grantor or his heirs, that person shall, on breach of the condition, have the same right of entry upon the real estate and the same remedy for the breach, by entry, suit or otherwise, as the original grantor or those who legally represent him would have, if still owning the reversion.