Akibat Hukum Perjanjian Pengikatan Jual Beli yang Tidak Pernah Dibuat oleh Salah Satu Pihak (Putusan Mahkamah Agung RI Nomor 3211 K/Pdt/2019) = Legal Consequences of a Binding Sale and Purchase Agreement that was Never Made by One of the Parties (Supreme Court Decision of the Republic of Indonesia Number 3211 K/Pdt/2019)