diff --git a/r2/r2/controllers/api.py b/r2/r2/controllers/api.py
index 6aad18272b..10cb03ca69 100644
--- a/r2/r2/controllers/api.py
+++ b/r2/r2/controllers/api.py
@@ -1615,9 +1615,10 @@ def POST_editusertext(self, form, jquery, item, text):
             return
 
         removed_mentions = None
+        original_text = item.body
         if isinstance(item, Comment):
             kind = 'comment'
-            removed_mentions = set(extract_user_mentions(item.body)) - \
+            removed_mentions = set(extract_user_mentions(original_text)) - \
                 set(extract_user_mentions(text))
             item.body = text
         elif isinstance(item, Link):
@@ -1648,6 +1649,9 @@ def POST_editusertext(self, form, jquery, item, text):
 
         amqp.add_item('usertext_edited', item._fullname)
 
+        hooks.get_hook("thing.edit").call(
+            thing=item, original_text=original_text)
+
         # new mentions are subject to more constraints, handled in butler_q
         if removed_mentions:
             queries.unnotify(item, list(Account._names_to_ids(
diff --git a/r2/r2/public/static/js/ui.js b/r2/r2/public/static/js/ui.js
index ef8ee761b5..b17167ff02 100644
--- a/r2/r2/public/static/js/ui.js
+++ b/r2/r2/public/static/js/ui.js
@@ -10,9 +10,7 @@ r.ui.init = function() {
     }
 
     // mobile suggest infobar
-    var smallScreen = window.matchMedia
-                      ? matchMedia('(max-device-width: 700px)').matches
-                      : $(window).width() < 700,
+    var smallScreen = r.ui.isSmallScreen(),
         onFrontPage = $.url().attr('path') == '/'
     if (smallScreen && onFrontPage && r.config.renderstyle != 'compact') {
         var infobar = $('<div class="infobar mellow">')
@@ -32,7 +30,9 @@ r.ui.init = function() {
         $(el).data('SubredditSubmitText', new r.ui.SubredditSubmitText({el: el}))
     })
 
-    if (r.config.new_window) {
+    /* Open links in new tabs if they have the preference set or are logged out
+     * and on a "large" screen. */
+    if (r.config.new_window && (r.config.logged || !smallScreen)) {
         $(document.body).on('click', 'a.may-blank, .may-blank-within a', function() {
             if (!this.target) {
                 this.target = '_blank'
@@ -48,6 +48,13 @@ r.ui.init = function() {
     r.ui.initTimings()
 }
 
+r.ui.isSmallScreen = function() {
+ return window.matchMedia
+          // 736px is the width of the iPhone 6+.
+          ? matchMedia('(max-device-width: 736px)').matches
+          : $(window).width() < 736;
+}
+
 r.ui.TimeTextScrollListener = r.ScrollUpdater.extend({
     initialize: function(options) {
         this.timeText = options.timeText