FIX: Broken assigned topics search (#251)

regressed in #239

assets/javascripts/discourse-assign/controllers/group-assigned-show.js.es6

@@ -1,5 +1,5 @@
 import UserTopicsList from "discourse/controllers/user-topics-list";
-import { alias, readOnly } from "@ember/object/computed";
+import { alias } from "@ember/object/computed";
 import discourseDebounce from "discourse-common/lib/debounce";
 import { INPUT_DELAY } from "discourse-common/config/environment";
 import { inject as controller } from "@ember/controller";
@@ -18,8 +18,6 @@ export default UserTopicsList.extend({
 
   queryParams: ["order", "ascending", "search"],
 
-  searchTerm: readOnly("search"),
-
   _setSearchTerm(searchTerm) {
     this.set("search", searchTerm);
     this.refreshModel();

assets/javascripts/discourse-assign/controllers/user-activity-assigned.js.es6

@@ -8,7 +8,6 @@ import { action } from "@ember/object";
 import getURL from "discourse-common/lib/get-url";
 import { iconHTML } from "discourse-common/lib/icon-library";
 import I18n from "I18n";
-import { readOnly } from "@ember/object/computed";
 
 export default UserTopicsList.extend({
   user: controller(),
@@ -18,8 +17,6 @@ export default UserTopicsList.extend({
   ascending: false,
   search: "",
 
-  searchTerm: readOnly("search"),
-
   _setSearchTerm(searchTerm) {
     this.set("search", searchTerm);
     this.refreshModel();

assets/javascripts/discourse/templates/group-topics-list.hbs

@@ -2,7 +2,7 @@
   <div class="inline-form full-width">
     {{input
       class="no-blur"
-      value=searchTerm
+      value=(readonly search)
       placeholder=(i18n "discourse_assign.topic_search_placeholder")
       input=(action "onChangeFilter" value="target.value")
       autocomplete="discourse"

assets/javascripts/discourse/templates/group/assigned.hbs

@@ -5,7 +5,7 @@
         {{input
           type="text"
           placeholder=(i18n "discourse_assign.sidebar_name_filter_placeholder")
-          value=filterName
+          value=(readonly filterName)
           class="search"
           input=(action "onChangeFilterName" value="target.value")
         }}

assets/javascripts/discourse/templates/user-assigned-topics.hbs

@@ -10,7 +10,7 @@
     <div class="inline-form full-width">
       {{input
         class="no-blur"
-        value=searchTerm
+        value=(readonly search)
         placeholder=(i18n "discourse_assign.topic_search_placeholder")
         input=(action "onChangeFilter" value="target.value")
         autocomplete="discourse"
@@ -39,4 +39,3 @@
     {{conditional-loading-spinner condition=model.loadingMore}}
   {{/load-more}}
 {{/if}}
-