[gnome-builder] buildconfig: fix environment duplication

[Christian Hergert <chergert src gnome org>]

commit d294f6685f441d19863e440931394eee1848e7e9
Author: Christian Hergert <chergert redhat com>
Date:   Tue Sep 4 11:53:38 2018 -0700

    buildconfig: fix environment duplication

 src/libide/buildconfig/ide-buildconfig-configuration-provider.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/src/libide/buildconfig/ide-buildconfig-configuration-provider.c 
b/src/libide/buildconfig/ide-buildconfig-configuration-provider.c
index d03c290e3..c02599fde 100644
--- a/src/libide/buildconfig/ide-buildconfig-configuration-provider.c
+++ b/src/libide/buildconfig/ide-buildconfig-configuration-provider.c
@@ -616,6 +616,7 @@ ide_buildconfig_configuration_provider_duplicate (IdeConfigurationProvider *prov
   g_autofree gchar *new_config_id = NULL;
   g_autofree gchar *new_name = NULL;
   IdeConfigurationManager *manager;
+  IdeEnvironment *env;
   const gchar *config_id;
   const gchar *name;
   IdeContext *context;
@@ -641,12 +642,16 @@ ide_buildconfig_configuration_provider_duplicate (IdeConfigurationProvider *prov
   /* translators: %s is replaced with the name of the configuration */
   new_name = g_strdup_printf (_("%s (Copy)"), name);
 
+  env = ide_configuration_get_environment (config);
+
   new_config = g_object_new (IDE_TYPE_BUILDCONFIG_CONFIGURATION,
                              "id", new_config_id,
                              "context", context,
                              "display-name", new_name,
                              NULL);
 
+  ide_environment_copy_into (env, ide_configuration_get_environment (new_config), TRUE);
+
   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (new_config), &n_pspecs);
 
   for (guint i = 0; i < n_pspecs; i++)