diff --git a/src/Config.js b/src/Config.js
index 5e1ea7f..edb7e6f 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -20,19 +20,20 @@ const DEFAULT_CONFIG={
 };
 
 export function load_config() {
-    let config_txt=localStorage['hole_config']||'{}';
-    let config;
+    let config=Object.assign({},DEFAULT_CONFIG);
+    let loaded_config;
     try {
-        config=JSON.parse(config_txt);
+        loaded_config=JSON.parse(localStorage['hole_config']||'{}');
     } catch(e) {
         alert('设置加载失败，将重置为默认设置！\n'+e);
         delete localStorage['hole_config'];
-        config={};
+        loaded_config={};
     }
 
-    Object.keys(DEFAULT_CONFIG).forEach((key)=>{
-        if(config[key]===undefined)
-            config[key]=DEFAULT_CONFIG[key];
+    // unrecognized configs are removed
+    Object.keys(loaded_config).forEach((key)=>{
+        if(config[key]!==undefined)
+            config[key]=loaded_config[key];
     });
 
     console.log('config loaded',config);
@@ -208,7 +209,7 @@ export class ConfigUI extends PureComponent {
                     <hr />
                     <p>
                         新功能建议或问题反馈请在&nbsp;
-                        <a href="https://github.com/xmcp/ashole/issues" target="_blank">GitHub <span className="icon icon-github" /></a>
+                        <a href="https://github.com/pkuhelper-web/webhole/issues" target="_blank">GitHub <span className="icon icon-github" /></a>
                         &nbsp;提出。
                     </p>
                 </div>
diff --git a/src/Flows.js b/src/Flows.js
index b6a361f..18ed493 100644
--- a/src/Flows.js
+++ b/src/Flows.js
@@ -283,7 +283,7 @@ class FlowSidebar extends PureComponent {
     show_reply_bar(name,event) {
         if(this.reply_ref.current && !event.target.closest('a')) {
             let text=this.reply_ref.current.get();
-            if(/^\s*(Re (洞主|\b[A-Z][a-z]+){0,2}:)?\s*$/.test(text)) {// text is nearly empty so we can replace it
+            if(/^\s*(?:Re (?:|洞主|(?:[A-Z][a-z]+ )?(?:[A-Z][a-z]+)):)?\s*$/.test(text)) {// text is nearly empty so we can replace it
                 let should_text='Re '+name+': ';
                 if(should_text===this.reply_ref.current.get())
                     this.reply_ref.current.set('');
diff --git a/src/Title.js b/src/Title.js
index 3723167..ea59683 100644
--- a/src/Title.js
+++ b/src/Title.js
@@ -125,7 +125,7 @@ class ControlBar extends PureComponent {
                                     &nbsp;/&nbsp;
                                     <a href="http://pkuhelper.pku.edu.cn/treehole_rules.html" target="_blank">树洞规范</a>
                                     &nbsp;/&nbsp;
-                                    <a href="https://github.com/xmcp/ashole/issues" target="_blank">意见反馈 <span className="icon icon-github" /></a>
+                                    <a href="https://github.com/pkuhelper-web/webhole/issues" target="_blank">意见反馈 <span className="icon icon-github" /></a>
                                 </div>
                                 {HELP_TEXT}
                             </div>