--- loncom/interface/londocs.pm	2017/03/15 02:05:20	1.484.2.70
+++ loncom/interface/londocs.pm	2017/11/10 15:52:26	1.484.2.75
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.484.2.70 2017/03/15 02:05:20 raeburn Exp $
+# $Id: londocs.pm,v 1.484.2.75 2017/11/10 15:52:26 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1959,8 +1959,8 @@ sub get_newmap_url {
 sub dbcopy {
     my ($dbref,$coursedom,$coursenum,$lockerrorsref) = @_;
     my ($url,$result,$errtext);
-    $url = $dbref->{'src'};
     if (ref($dbref) eq 'HASH') {
+        $url = $dbref->{'src'};
         if ($url =~ m{/(smppg|bulletinboard)$}) {
             my $prefix = $1;
             if (($dbref->{'cdom'} =~ /^$match_domain$/) &&
@@ -3746,7 +3746,7 @@ END
                     }
                 }
                 if ($url ne '') {
-                    $url.=(($url=~/\?/)?'&':'?').'symb='.&HTML::Entities::encode($shownsymb,'"<>&');
+                    $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($shownsymb);
                 }
             } elsif (!$env{'request.role.adv'}) {
                 my $checkencrypt;
@@ -3968,7 +3968,7 @@ $form_end;
            $line.=&Apache::loncommon::modal_link($link,$title,600,500);
        }
     } elsif (($hiddenfolder) || ($hiddenres)) {
-       $line.=$title.' <span class="LC_warning LC_docs_reinit_warn">'.&mt('(Hidden)').'</span>';
+       $line.=$title.' <span class="LC_warning LC_docs_reinit_warn">('.&mt('Hidden').')</span>';
     } else {
        $line.=$title.' <span class="LC_docs_reinit_warn">'.$reinit.'</span>';
     }
@@ -5112,6 +5112,7 @@ sub handler {
 	  undef($hadchanges);
           $uploadphase = &process_file_upload(\$upload_output,$coursenum,$coursedom,
                                               \%allfiles,\%codebase,$context,$crstype);
+          undef($navmap);
 	  if ($hadchanges) {
 	      &mark_hash_old();
 	  }
@@ -5633,7 +5634,9 @@ unless ($container eq 'page') {
              $r->print('<p><span class="LC_error">'.$error.'</span></p>');
           }
           if ($hadchanges) {
-             &mark_hash_old();
+             unless (&is_hash_old()) {
+                 &mark_hash_old();
+             }
           }
 
           &changewarning($r,'');