fix cannot switch to Ember 1.13

Author: Gaurav0

app/services/meta-store.js

@@ -3,6 +3,7 @@ import { isPresent } from '@ember/utils';
 import { set } from '@ember/object';
 import { A } from '@ember/array';
 import getCompactVersion from 'ember-api-docs/utils/get-compact-version';
+import getLastVersion from 'ember-api-docs/utils/get-last-version';
 
 export default Service.extend({
 
@@ -52,6 +53,6 @@ export default Service.extend({
       return;
     }
     // since there can be multiple full versions that match the compact version, use the most recent one.
-    return filtered.reduce((accumulator, current) => accumulator.split('.')[2] < current.split('.')[2] ? current : accumulator);
+    return getLastVersion(filtered);
   }
 });

tests/acceptance/switch-versions-test.js

@@ -171,4 +171,16 @@ module('Acceptance | version navigation', function(hooks) {
     await waitForSettled();
     assert.equal(currentURL(), '/ember/2.18/classes/Component', 'navigated to v2.18 for new class');
   });
+
+  test(`can switch to ember 1.13`, async function(assert) {
+    await visit('/ember/2.0/classes/Ember.Component');
+    await waitForSettled();
+    assert.equal(currentURL(), '/ember/2.0/classes/Ember.Component', 'navigated to v2.0 namespace');
+    await selectChoose('.ember-power-select-trigger', '1.12');
+    await waitForSettled();
+    assert.equal(currentURL(), '/ember/1.12/classes/Ember.Component', 'navigated to v1.12 class');
+    await selectChoose('.ember-power-select-trigger', '1.13');
+    await waitForSettled();
+    assert.equal(currentURL(), '/ember/1.13/classes/Ember.Component', 'navigated to v1.13 class');
+  });
 });