setvalue为null值时会死循环

[chengpeng666]

[ { "info": "", "link": [ "" ], "type": "input", "field": "remainingAmount", "props": { "disabled": false, "readonly": true }, "title": "Remaining Amount", "hidden": false, "update": "[[FORM-CREATE-PREFIX-function update(val, rule, fApi) {\n console.log("循环")\n var totalAmount = fApi.getValue("totalAmount");\n var waivedAmount=fApi.getValue("waivedAmount");\n var m = null;\n fApi.setValue("remainingAmount",m)\n}-FORM-CREATE-SUFFIX]]", "display": true, "validate": [ { "required": false } ], "_fc_drag_tag": "input" } ]

fApi.setValue如果设置值为null会循环触发update，旧版本不会循环触发