FIX: Sort needs to be stable.

plugins/poll/assets/javascripts/widgets/discourse-poll.js.es6

@@ -81,6 +81,7 @@ createWidget('discourse-poll-voters', {
     if (state.loaded === 'loading') { return; }
 
     const { voterIds } = attrs;
+
     if (!voterIds.length) { return; }
 
     const windowSize = Math.round(($('.poll-container:eq(0)').width() / 25) * 2);
@@ -137,7 +138,19 @@ createWidget('discourse-poll-standard-results', {
     if (options) {
 
       const voters = poll.get('voters');
-      const ordered = options.sort((a, b) => b.votes - a.votes);
+      const ordered = options.sort((a, b) => {
+        if (a.votes < b.votes) {
+          return 1;
+        } else if (a.votes == b.votes) {
+          if (a.html < b.html) {
+            return -1;
+          } else {
+            return 1;
+          }
+        } else {
+          return -1;
+        }
+      });
 
       const percentages = voters === 0 ?
         Array(ordered.length).fill(0) :

plugins/poll/test/javascripts/widgets/discourse-poll-standard-results-test.js.es6

@@ -45,10 +45,11 @@ widgetTest('multiple options in descending order', {
     this.set('poll', Ember.Object.create({
       type: 'multiple',
       options: [
-        { votes: 5 },
-        { votes: 2 },
-        { votes: 4 },
-        { votes: 1 }
+        { votes: 5, html: 'a' },
+        { votes: 2, html: 'b' },
+        { votes: 4, html: 'c' },
+        { votes: 1, html: 'b' },
+        { votes: 1, html: 'a' }
       ],
       voters: 12
     }));
@@ -59,5 +60,8 @@ widgetTest('multiple options in descending order', {
     assert.equal(this.$('.option .percentage:eq(1)').text(), '33%');
     assert.equal(this.$('.option .percentage:eq(2)').text(), '16%');
     assert.equal(this.$('.option .percentage:eq(3)').text(), '8%');
+    assert.equal(this.$('.option span:nth-child(2):eq(3)').text(), 'a');
+    assert.equal(this.$('.option .percentage:eq(4)').text(), '8%');
+    assert.equal(this.$('.option span:nth-child(2):eq(4)').text(), 'b');
   }
 });