[gimp/metadata-browser] app: don't set another scanner error after gimp_config_deserialize() failed

[Roman Joost <romanofski src gnome org>]

commit d7448c1efa12918a728345f5fd059115b3ea6a0a
Author: Michael Natterer <mitch gimp org>
Date:   Fri Mar 30 10:09:14 2012 +0200

    app: don't set another scanner error after gimp_config_deserialize() failed
    
    Setting errors on top of each other produces runtime warnings.

 app/gui/session.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/app/gui/session.c b/app/gui/session.c
index 0487e05..721ede7 100644
--- a/app/gui/session.c
+++ b/app/gui/session.c
@@ -218,7 +218,12 @@ session_init (Gimp *gimp)
               else
                 {
                   g_object_unref (info);
-                  break;
+
+                  /* set token to left paren to we won't set another
+                   * error below, gimp_config_deserialize() already did
+                   */
+                  token = G_TOKEN_LEFT_PAREN;
+                  goto error;
                 }
             }
           else if (scanner->value.v_symbol == GINT_TO_POINTER (HIDE_DOCKS))
@@ -272,6 +277,8 @@ session_init (Gimp *gimp)
         }
     }
 
+ error:
+
   if (token != G_TOKEN_LEFT_PAREN)
     {
       g_scanner_get_next_token (scanner);