[gnome-software] trivial: Manually drop the cache when we detect that flatpak has changed

[Richard Hughes <rhughes src gnome org>]

commit 33b73dc447e1802e4533e982575af6ed598bcb1a
Author: Richard Hughes <richard hughsie com>
Date:   Fri Jun 10 17:53:20 2016 +0100

    trivial: Manually drop the cache when we detect that flatpak has changed

 src/plugins/gs-flatpak.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-flatpak.c b/src/plugins/gs-flatpak.c
index 5129724..6d8ce76 100644
--- a/src/plugins/gs-flatpak.c
+++ b/src/plugins/gs-flatpak.c
@@ -59,6 +59,12 @@ gs_plugin_flatpak_changed_cb (GFileMonitor *monitor,
        g_autoptr(GError) error = NULL;
        g_autoptr(GError) error_md = NULL;
 
+       /* manually drop the cache */
+       if (!flatpak_installation_drop_caches (self->installation,
+                                              cancellable,
+                                              error))
+               return FALSE;
+
        /* if this is a new remote, get the AppStream data */
        if (!gs_flatpak_refresh_appstream (self, G_MAXUINT, NULL, &error_md)) {
                g_warning ("failed to get initial available data: %s",