multiple solution

[marcT21]

Hello, I am using the version v0.4.4
I was able to generate a board with multiple solutions :
[{"val":3},{"val":4},{"val":9},{"val":6},{"val":1},{"val":8},{"val":5},{"val":7},{"val":2},{"val":7},{"val":8},{"val":2},{"val":3},{"val":5},{"val":9},{"val":null,"candidates":[null,null,null,4,null,6,null,null,null,null]},{"val":null,"candidates":[1,null,null,4,null,null,null,null,null,null]},{"val":null,"candidates":[1,null,null,null,null,6,null,null,null,null]},{"val":6},{"val":5},{"val":1},{"val":7},{"val":4},{"val":2},{"val":3},{"val":8},{"val":9},{"val":2},{"val":7},{"val":3},{"val":8},{"val":9},{"val":5},{"val":null,"candidates":[null,null,null,4,null,6,null,null,null,null]},{"val":null,"candidates":[1,null,null,4,null,null,null,null,null,null]},{"val":null,"candidates":[1,null,null,null,null,6,null,null,null,null]},{"val":1},{"val":9},{"val":5},{"val":4},{"val":7},{"val":6},{"val":2},{"val":3},{"val":8},{"val":8},{"val":6},{"val":4},{"val":2},{"val":3},{"val":1},{"val":9},{"val":5},{"val":7},{"val":5},{"val":2},{"val":7},{"val":1},{"val":6},{"val":4},{"val":8},{"val":9},{"val":3},{"val":9},{"val":1},{"val":8},{"val":5},{"val":2},{"val":3},{"val":7},{"val":6},{"val":4},{"val":4},{"val":3},{"val":6},{"val":9},{"val":8},{"val":7},{"val":1},{"val":2},{"val":5}]

Is there a way to avoid this?
Thank you