clarify copy when editing a poll after the first 5 minutes

plugins/poll/config/locales/server.en.yml

@@ -24,8 +24,10 @@ en:
     named_poll_must_have_different_options: "Poll named <strong>%{name}</strong> must have different options."
 
     requires_at_least_1_valid_option: "You must select at least 1 valid option."
-    cannot_change_polls_after_5_minutes: "Polls cannot be changed after the first 5 minutes. Contact a moderator if you need to change them."
-    staff_cannot_add_or_remove_options_after_5_minutes: "After the first 5 minutes, poll options can only be edited, not added or removed. If you need to add or remove options, you should close this topic and create a new one."
+
+    cannot_change_polls_after_5_minutes: "You cannot add, remove or rename polls after the first 5 minutes."
+    op_cannot_edit_options_after_5_minutes: "You cannot add or remove poll options after the first 5 minutes. Please contact a moderator if you need to edit a poll option."
+    staff_cannot_add_or_remove_options_after_5_minutes: "You cannot add or remove poll options after the first 5 minutes. You should close this topic and create a new one instead."
 
     no_polls_associated_with_this_post: "No polls are associated with this post."
     no_poll_with_this_name: "No poll named <strong>%{name}</strong> associated with this post."

plugins/poll/plugin.rb

@@ -260,10 +260,10 @@ after_initialize do
         if polls.keys != previous_polls.keys ||
            polls.values.map { |p| p["options"] } != previous_polls.values.map { |p| p["options"] }
 
-          # outside the 5-minute edit window?
+          # outside of the 5-minute edit window?
           if post.created_at < 5.minutes.ago
-            # cannot add/remove/change/re-order polls
-            if polls.keys != previous_polls.keys
+            # cannot add/remove/rename polls
+            if polls.keys.sort != previous_polls.keys.sort
               post.errors.add(:base, I18n.t("poll.cannot_change_polls_after_5_minutes"))
               return
             end
@@ -278,8 +278,8 @@ after_initialize do
                 end
               end
             else
-              # OP cannot change polls
-              post.errors.add(:base, I18n.t("poll.cannot_change_polls_after_5_minutes"))
+              # OP cannot edit poll options
+              post.errors.add(:base, I18n.t("poll.op_cannot_edit_options_after_5_minutes"))
               return
             end
           end

plugins/poll/spec/controllers/posts_controller_spec.rb

@@ -92,7 +92,7 @@ describe PostsController do
           xhr :put, :update, { id: post_id, post: { raw: new_raw } }
           expect(response).not_to be_success
           json = ::JSON.parse(response.body)
-          expect(json["errors"][0]).to eq(I18n.t("poll.cannot_change_polls_after_5_minutes"))
+          expect(json["errors"][0]).to eq(I18n.t("poll.op_cannot_edit_options_after_5_minutes"))
         end
 
         it "can be edited by staff" do