Make sure that the AssetDiscovery contentHandler was added to all config files.

docs/changelog/7.x.x.txt

@@ -4,6 +4,7 @@
  - fixed #9677: no output from form helper template variable sticky.form and stick.label
  - fixed #9738: Gallery Title [TEMPLATE]
  - fixed #9739: Gallery Delete Album Template [TEMPLATE]
+ - fixed #9737: Upgrade Missed a Config Option
 
 7.6.11
  - fixed: Asset Manager can generate URLs that are too long

docs/upgrades/upgrade_7.6.11-7.6.12.pl

@@ -22,6 +22,7 @@ use Getopt::Long;
 use WebGUI::Session;
 use WebGUI::Storage;
 use WebGUI::Asset;
+use WebGUI::Utility qw/isIn/;
 
 
 my $toVersion = '7.6.12';
@@ -29,6 +30,7 @@ my $quiet; # this line required
 
 
 my $session = start(); # this line required
+addAssetDiscoveryServiceAgain( $session );
 
 # upgrade functions go here
 
@@ -44,6 +46,27 @@ finish($session); # this line required
 #    print "DONE!\n" unless $quiet;
 #}
 
+#----------------------------------------------------------------------------
+sub addAssetDiscoveryServiceAgain {
+    my $session = shift;
+    print "\tAdding asset discovery service..." unless $quiet;
+    my @handlers = @{ $session->config->get('contentHandlers') };
+    if (isIn( 'WebGUI::Content::AssetDiscovery', @handlers) ) {
+        print "Done.\n" unless $quiet;
+        return;
+    }
+    my @newHandlers = ();
+    foreach my $handler (@handlers) {
+        if ($handler eq 'WebGUI::Content::Operation') {
+            push @newHandlers, 'WebGUI::Content::AssetDiscovery';
+        }
+        push @newHandlers, $handler;
+    }
+    $session->config->set('contentHandlers', \@newHandlers);
+    print "Done.\n" unless $quiet;
+}
+
+
 
 # -------------- DO NOT EDIT BELOW THIS LINE --------------------------------