fix: duplicate column scan

scan.go

@@ -196,6 +196,7 @@ func Scan(rows Rows, db *DB, mode ScanMode) {
 				for idx, column := range columns {
 					if field := sch.LookUpField(column); field != nil && field.Readable {
 						if curIndex, ok := selectedColumnsMap[column]; ok {
+							fields[idx] = field // handle duplicate fields
 							for fieldIndex, selectField := range sch.Fields[curIndex+1:] {
 								if selectField.DBName == column && selectField.Readable {
 									selectedColumnsMap[column] = curIndex + fieldIndex + 1

tests/scan_test.go

@@ -214,4 +214,11 @@ func TestScanToEmbedded(t *testing.T) {
 	if !addressMatched {
 		t.Errorf("Failed, no address matched")
 	}
+
+	personDupField := Person{ID: person1.ID}
+	if err := DB.Select("people.id, people.*").
+		First(&personDupField).Error; err != nil {
+		t.Errorf("Failed to run join query, got error: %v", err)
+	}
+	AssertEqual(t, person1, personDupField)
 }