crash on missing topic parameters, ranamed var for clarity

src/views/new-topic-view.jsx

@@ -35,7 +35,7 @@ class NewTopicView extends React.Component {
     super(props);
 
     this.state = {
-      tabSelected: 'p2p',
+      tabSelected: 'find',
       searchQuery: null
     };
 
@@ -62,7 +62,7 @@ class NewTopicView extends React.Component {
   }
 
   handleContactSelected(uid) {
-    if (this.state.tabSelected == 'p2p') {
+    if (this.state.tabSelected == 'find') {
       HashNavigation.navigateTo(HashNavigation.removeUrlParam(window.location.hash, 'tab'));
       this.props.onCreateTopic(uid);
     }
@@ -87,8 +87,8 @@ class NewTopicView extends React.Component {
     return (
       <div className="flex-column">
         <ul className="tabbar">
-          <li className={this.state.tabSelected === "p2p" ? "active" : null}>
-            <a href="#" data-id="p2p" onClick={this.handleTabClick}>
+          <li className={this.state.tabSelected === "find" ? "active" : null}>
+            <a href="#" data-id="find" onClick={this.handleTabClick}>
               <FormattedMessage id="tabtitle_find_user" defaultMessage="find"
                 description="Tab title Find" />
             </a>
@@ -116,7 +116,6 @@ class NewTopicView extends React.Component {
               onError={this.props.onError} /> :
             <div className="flex-column">
               <SearchContacts
-                type="p2p"
                 placeholder={search_placeholder}
                 onSearchContacts={this.handleSearchContacts} />
               <ContactList

src/views/tinode-web.jsx

@@ -1235,8 +1235,10 @@ class TinodeWeb extends React.Component {
       params.desc = {defacs: {auth: DEFAULT_P2P_ACCESS_MODE}};
     } else {
       topicName = topicName || this.tinode.newGroupTopicName(isChannel);
-      params.desc = {public: newTopicParams.public, private: {comment: newTopicParams.private}};
-      params.tags = newTopicParams.tags;
+      if (newTopicParams) {
+        params.desc = {public: newTopicParams.public, private: {comment: newTopicParams.private}};
+        params.tags = newTopicParams.tags;
+      }
     }
     params._topicName = topicName;
     this.setState({newTopicParams: params}, () => {this.handleTopicSelected(topicName)});