[gnome-calendar/calendar-editor] source-dialog: better handle server errors

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit c2ad0fcdbaaa1205dd1029ffc89c34102171da6e
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Mar 30 23:34:30 2015 -0300

    source-dialog: better handle server errors

 src/gcal-source-dialog.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/gcal-source-dialog.c b/src/gcal-source-dialog.c
index 00a34cb..6f7eee9 100644
--- a/src/gcal-source-dialog.c
+++ b/src/gcal-source-dialog.c
@@ -747,9 +747,12 @@ discover_sources_cb (GObject      *source,
 
       /*
        * If it's the first try and things went wrong,
-       * retry with the user credentials.
+       * retry with the user credentials. Also, it
+       * checks for the error code, since we don't
+       * really want to retry things on unavailable
+       * servers.
        */
-      if (!priv->prompt_password)
+      if (!priv->prompt_password && error->code == 14)
         {
           g_debug ("[source-dialog] No credentials failed, retrying with user credentials...");