Handle incorrect data in mapped inputs

assets/javascripts/discourse/components/wizard-mapper.js.es6

@@ -1,15 +1,24 @@
 import { getOwner } from 'discourse-common/lib/get-owner';
 import { newInput, selectionTypes } from '../lib/wizard-mapper';
 import { default as discourseComputed, observes, on } from 'discourse-common/utils/decorators';
+import { later } from "@ember/runloop";
 import Component from "@ember/component";
 import { A } from "@ember/array";
 
 export default Component.extend({
   classNames: 'wizard-mapper',
   
+  didReceiveAttrs() {
+    if (this.inputs && this.inputs.constructor !== Array) {
+      later(() => this.set('inputs', null));
+    }
+  },
+  
   @discourseComputed('inputs.@each.type')
   canAdd(inputs) {
-    return !inputs || inputs.every(i => {
+    return !inputs ||
+           inputs.constructor !== Array ||
+           inputs.every(i => {
              return ['assignment','association'].indexOf(i.type) === -1;
            });
   },

assets/javascripts/discourse/lib/wizard-json.js.es6

@@ -23,10 +23,15 @@ function castCase(property, value) {
 }
 
 function buildProperty(json, property, type) {
-  if (mapped(property, type) && present(json[property])) {
+  let value = json[property];
+  
+  if (mapped(property, type) &&
+      present(value) &&
+      value.constructor === Array) {
+    
     let inputs = [];
         
-    json[property].forEach(inputJson => {
+    value.forEach(inputJson => {
       let input = {}
       
       Object.keys(inputJson).forEach(inputKey => {
@@ -61,7 +66,7 @@ function buildProperty(json, property, type) {
     
     return A(inputs);
   } else {
-    return json[property];
+    return value;
   }
 }
 

assets/stylesheets/common/wizard-admin.scss

@@ -34,6 +34,10 @@
 
 .wizard-submissions {
   overflow: scroll;
+  
+  table td {
+    min-width: 150px;
+  }
 }
 
 .admin-wizards-logs {