Improve accuracy of determining that comment is only a quote and thus captcha should not be opened yet. #2421, #2431

src/Posting/Captcha.cache.coffee

@@ -14,7 +14,7 @@ Captcha.cache =
     not (
       @haveCookie() or @captchas.length or QR.req or @submitCB
     ) and (
-      QR.posts.length > 1 or Conf['Auto-load captcha'] or /^\s*[^\s>]/m.test(QR.posts[0].com or '') or QR.posts[0].file
+      QR.posts.length > 1 or Conf['Auto-load captcha'] or !QR.posts[0].isOnlyQuotes() or QR.posts[0].file
     )
 
   needed: ->
@@ -31,7 +31,7 @@ Captcha.cache =
         !QR.captcha.occupied() and
         QR.cooldown.seconds <= 60 and
         QR.selected is QR.posts[QR.posts.length - 1] and
-        /^\s*[^\s>]/m.test(QR.selected.com or '')
+        !QR.selected.isOnlyQuotes()
       )
         isReply = (QR.selected.thread isnt 'new')
         if !$.event('RequestCaptcha', {isReply})

src/Posting/QR.coffee

@@ -329,6 +329,8 @@ QR =
     {com, thread} = QR.nodes
     thread.value = Get.threadFromNode @ unless com.value
 
+    wasOnlyQuotes = QR.selected.isOnlyQuotes()
+
     caretPos = com.selectionStart
     # Replace selection for text.
     com.value = com.value[...caretPos] + text + com.value[com.selectionEnd..]
@@ -337,6 +339,9 @@ QR =
     com.setSelectionRange range, range
     com.focus()
 
+    # This allows us to determine if any text other than quotes has been typed.
+    QR.selected.quotedText = com.value if wasOnlyQuotes
+
     QR.selected.save com
     QR.selected.save thread
 
@@ -654,6 +659,7 @@ QR =
         return
 
     post = QR.posts[0]
+    delete post.quotedText
     post.forceSave()
     threadID = post.thread
     thread = g.BOARD.threads.get(threadID)

src/Posting/QR.post.coffee

@@ -169,6 +169,9 @@ QR.post = class
     QR.captcha.moreNeeded()
     Captcha.cache.prerequest()
 
+  isOnlyQuotes: ->
+    (@com or '').trim() is (@quotedText or '').trim()
+
   @rmErrored: (e) ->
     e.stopPropagation()
     for post in QR.posts by -1 when errors = post.errors