Make sure per page is always restored

Author: GrahamCampbell

lib/Github/ResultPager.php

@@ -78,26 +78,28 @@ public function fetchAll(ApiInterface $api, $method, array $parameters = [])
         // set parameters per_page to GitHub max to minimize number of requests
         $api->setPerPage(100);
 
-        $result = $this->callApi($api, $method, $parameters);
-        $this->postFetch();
+        try {
+            $result = $this->callApi($api, $method, $parameters);
+            $this->postFetch();
 
-        if ($isSearch) {
-            $result = isset($result['items']) ? $result['items'] : $result;
-        }
+            if ($isSearch) {
+                $result = isset($result['items']) ? $result['items'] : $result;
+            }
 
-        while ($this->hasNext()) {
-            $next = $this->fetchNext();
+            while ($this->hasNext()) {
+                $next = $this->fetchNext();
 
-            if ($isSearch) {
-                $result = array_merge($result, $next['items']);
-            } else {
-                $result = array_merge($result, $next);
+                if ($isSearch) {
+                    $result = array_merge($result, $next['items']);
+                } else {
+                    $result = array_merge($result, $next);
+                }
             }
+        } finally {
+            // restore the perPage
+            $api->setPerPage($perPage);
         }
 
-        // restore the perPage
-        $api->setPerPage($perPage);
-
         return $result;
     }