fix: 详情字段过滤问题

src/views/plugin/workflow/process/components/detail.vue

@@ -149,7 +149,7 @@ export default {
           const { option, vars } = this.handleResolveOption(eval('(' + allForm + ')'), taskForm, status)
           option.menuBtn = false
           for (let key in variables) {
-            if (!this.validatenull(variables[key])) delete variables[key]
+            if (this.validatenull(variables[key])) delete variables[key]
           }
           if (option.column && process.variables && process.variables.serialNumber) {
             option.column.unshift({