fix: 汇总表单汇总节点不配置表单时错误的问题

src/views/plugin/workflow/pages/external/Leave/detail.vue

@@ -235,7 +235,7 @@ export default {
         const option = this.option
         option.menuBtn = false
         let { column, group } = option
-        if (taskForm) {
+        if (taskForm && taskForm.length > 0) {
           const columnFilter = this.filterAvueColumn(column, taskForm, true)
           column = columnFilter.column
           let vars = columnFilter.vars || []

src/views/plugin/workflow/pages/process/form/detail.vue

@@ -193,7 +193,7 @@ export default {
     handleResolveOption(option, taskForm, status) {
       let { column, group } = option
       let vars = []
-      if (taskForm) {
+      if (taskForm && taskForm.length > 0) {
         const columnFilter = this.filterAvueColumn(column, taskForm)
         column = columnFilter.column
         vars = columnFilter.vars || []
@@ -231,7 +231,7 @@ export default {
     handleResolveEvent(col, taskForm) {
       const _this = this
       delete col.value
-      if (!taskForm) {
+      if (!taskForm || taskForm.length == 0) {
         let event = ['change', 'blur', 'click', 'focus']
         event.forEach(e => {
           if (col[e]) col[e] = eval((col[e] + '').replace(/this/g, '_this'))