[gnome-software/wip/hughsie/flatpak] Manually drop the cache when getting updates

[Richard Hughes <rhughes src gnome org>]

commit e4db5efa67d38ca4ab893b472d159bba6de60475
Author: Richard Hughes <richard hughsie com>
Date:   Mon May 16 09:29:39 2016 +0100

    Manually drop the cache when getting updates

 src/plugins/gs-plugin-flatpak.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-flatpak.c b/src/plugins/gs-plugin-flatpak.c
index b0c46bc..04d01d3 100644
--- a/src/plugins/gs-plugin-flatpak.c
+++ b/src/plugins/gs-plugin-flatpak.c
@@ -555,6 +555,13 @@ gs_plugin_add_updates (GsPlugin *plugin,
        guint i;
        g_autoptr(GPtrArray) xrefs = NULL;
 
+       /* manually drop the cache */
+       if (!flatpak_installation_drop_caches (priv->installation,
+                                              cancellable,
+                                              error)) {
+               return FALSE;
+       }
+
        /* get all the installed apps (no network I/O) */
        xrefs = flatpak_installation_list_installed_refs (priv->installation,
                                                          cancellable,