Perlindungan terhadap pemenang lelang yang risalah lelangnya dibatalkan oleh putusan pengadilan: analisis putusan Pengadilan Tinggi nomor 247/PDT/2018/PT.BDG tanggal 23 Juli 2018 = The protection of an auction winner when his auction deed was annulled by a court decision: the analysis of the High Court verdict number: 247/PDT/2018/PT.BDG dated 23 July 2018