Don't try to load git notes from parent commit which may not have notes.

application/modules/bulletin/controllers/ViewController.php

@@ -149,18 +149,20 @@ class Bulletin_ViewController extends Requests_ViewController
             $contents = $repo->getFileNotes(
                 '/data/' . $repo->getFilePathForSection($section), $parentCommit
             );
-            $contents = Bulletin_SectionModel::getBodyHtml($contents);
-            //$contents = UNL_UndergraduateBulletin_EPUB_Utilities::format($contents);
-            $contents = UNL_UndergraduateBulletin_EPUB_Utilities::convertHeadings($contents);
-            $requestOriginalFileContents[$request->getId()] = $contents;
 
-            $contents = $repo->getFileNotes(
+            $originalFileContents = $repo->getFileContents('/data/' . $repo->getFilePathForSection($section), $parentCommit);
+	    $originalFileContents = Bulletin_SectionModel::getBodyHtml($originalFileContents);
+            //$originalFileContents = UNL_UndergraduateBulletin_EPUB_Utilities::format($originalFileContents);
+            $originalFileContents = UNL_UndergraduateBulletin_EPUB_Utilities::convertHeadings($originalFileContents);
+            $requestOriginalFileContents[$request->getId()] = $originalFileContents;
+
+            $proposedFileContents = $repo->getFileNotes(
                 '/data/' . $repo->getFilePathForSection($section), 'request-' . $request->getId()
             );
-            $contents = Bulletin_SectionModel::getBodyHtml($contents);
-            //$contents = UNL_UndergraduateBulletin_EPUB_Utilities::format($contents);
-            $contents = UNL_UndergraduateBulletin_EPUB_Utilities::convertHeadings($contents);
-            $requestProposedFileContents[$request->getId()] = $contents;
+            $proposedFileContents = Bulletin_SectionModel::getBodyHtml($proposedFileContents);
+            //$proposedFileContents = UNL_UndergraduateBulletin_EPUB_Utilities::format($proposedFileContents);
+            $proposedFileContents = UNL_UndergraduateBulletin_EPUB_Utilities::convertHeadings($proposedFileContents);
+            $requestProposedFileContents[$request->getId()] = $proposedFileContents;
         }
 
         $this->view->requests = $requests;