Use QR.db to test whether Mark Quotes of You is on.

Fixes backlinks crash on settings change and makes things more consistent.

src/Miscellaneous/Keybinds.coffee

@@ -184,10 +184,10 @@ Keybinds =
         return unless thread
         ThreadHiding.toggle thread if ThreadHiding.db
       when Conf['Previous Post Quoting You']
-        return unless threadRoot
+        return unless threadRoot and QR.db
         QuoteYou.cb.seek 'preceding'
       when Conf['Next Post Quoting You']
-        return unless threadRoot
+        return unless threadRoot and QR.db
         QuoteYou.cb.seek 'following'
       <% if (tests_enabled) { %>
       when 't'

src/Monitoring/Unread.coffee

@@ -175,7 +175,7 @@ Unread =
       Unread.posts.delete ID
       Unread.postsQuotingYou.delete ID
 
-      if Conf['Mark Quotes of You'] and QR.db?.get {
+      if QR.db?.get {
         boardID:  data.board.ID
         threadID: data.thread.ID
         postID:   ID

src/Quotelinks/QuoteBacklink.coffee

@@ -22,7 +22,7 @@ QuoteBacklink =
       cb:   @secondNode
   firstNode: ->
     return if @isClone or !@quotes.length or @isRebuilt
-    markYours = Conf['Quick Reply'] and Conf['Mark Quotes of You'] and QR.db.get {boardID: @board.ID, threadID: @thread.ID, postID: @ID}
+    markYours = QR.db?.get {boardID: @board.ID, threadID: @thread.ID, postID: @ID}
     a = $.el 'a',
       href: Build.postURL @board.ID, @thread.ID, @ID
       className: if @isHidden then 'filtered backlink' else 'backlink'

src/Quotelinks/QuoteYou.coffee

@@ -34,7 +34,6 @@ QuoteYou =
 
   cb:
     seek: (type) ->
-      return unless Conf['Mark Quotes of You'] and Conf['Quick Reply']
       $.rmClass highlight, 'highlight' if highlight = $ '.highlight'
 
       unless QuoteYou.lastRead