red text and hide postform button when thread hits reply limit, not in modview and not cyclical

models/forms/changeboardsettings.js

@@ -151,6 +151,11 @@ module.exports = async (req, res, next) => {
 			rebuildCatalog = true;
 	}
 
+	if (newSettings.replyLimit !== oldSettings.replyLimit) {
+		rebuildBoard = true;
+		rebuildThreads = true;
+	}
+
 	if (newSettings.captchaMode > oldSettings.captchaMode) {
 		if (oldSettings.captchaMode === 0) {
 			rebuildBoard = true;

views/pages/thread.pug

@@ -31,8 +31,11 @@ block head
 block content
 	+boardheader(modview ? 'Mod View' : null)
 	br
-	include ../includes/postform.pug
-	br
+	if thread.replyposts >= replyLimit && !thread.cyclic && !modview
+		include ../includes/postform.pug
+		br
+	else
+		p.title.text-center ⊖ Thread has reached reply limit.
 	include ../includes/announcements.pug
 	include ../includes/stickynav.pug
 	if modview