fix advanced section collapsing after changing claim name

ui/modal/modalRepost/view.jsx

@@ -74,6 +74,12 @@ function ModalRepost(props: Props) {
     repostNameError = __('You already have a claim with this name.');
   }
 
+  React.useEffect(() => {
+    if ((repostNameError || repostNameError) && !showAdvanced) {
+      setShowAdvanced(true);
+    }
+  }, [repostBidError, repostNameError, showAdvanced, setShowAdvanced]);
+
   const channelStrings = channels && channels.map(channel => channel.permanent_url).join(',');
   React.useEffect(() => {
     if (!repostChannel && channelStrings) {
@@ -111,7 +117,6 @@ function ModalRepost(props: Props) {
     doHideModal();
   }
 
-  const showAdvancedSection = showAdvanced || repostNameError || repostBidError;
   return (
     <Modal isOpen type="card" onAborted={handleCloseModal} onConfirmed={handleCloseModal}>
       <Card
@@ -137,13 +142,15 @@ function ModalRepost(props: Props) {
               channel={repostChannel}
               onChannelChange={newChannel => setRepostChannel(newChannel)}
             />
+            {!showAdvanced && (
               <div className="section__actions">
-              {!showAdvancedSection && (
                 <Button button="link" label={__('Advanced')} onClick={() => setShowAdvanced(true)} />
-              )}
               </div>
-            {showAdvancedSection && (
+            )}
+
+            {showAdvanced && (
               <React.Fragment>
+                <fieldset-section>
                   <fieldset-group class="fieldset-group--smushed fieldset-group--disabled-prefix">
                     <fieldset-section>
                       <label>{__('Name')}</label>
@@ -159,6 +166,8 @@ function ModalRepost(props: Props) {
                       onChange={event => setRepostName(event.target.value)}
                     />
                   </fieldset-group>
+                </fieldset-section>
+
                 <div className="form-field__help">
                   <I18nMessage
                     tokens={{