[gnome-software] flatpak: Fix a minor leak

[Richard Hughes <rhughes src gnome org>]

commit 6be33beafe69ebabacd073a00409cfa899053db1
Author: Philip Withnall <withnall endlessm com>
Date:   Mon Jul 29 17:59:40 2019 +0100

    flatpak: Fix a minor leak
    
    Signed-off-by: Philip Withnall <withnall endlessm com>

 plugins/flatpak/gs-flatpak.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/plugins/flatpak/gs-flatpak.c b/plugins/flatpak/gs-flatpak.c
index 014c758b..a8fb5f59 100644
--- a/plugins/flatpak/gs-flatpak.c
+++ b/plugins/flatpak/gs-flatpak.c
@@ -442,6 +442,7 @@ gs_flatpak_add_apps_from_xremote (GsFlatpak *self,
        g_autofree gchar *appstream_dir_fn = NULL;
        g_autofree gchar *appstream_fn = NULL;
        g_autofree gchar *icon_prefix = NULL;
+       g_autofree gchar *default_branch = NULL;
        g_autoptr(GFile) appstream_dir = NULL;
        g_autoptr(GFile) file_xml = NULL;
        g_autoptr(GSettings) settings = NULL;
@@ -532,8 +533,9 @@ gs_flatpak_add_apps_from_xremote (GsFlatpak *self,
 
        /* do we want to filter to the default branch */
        settings = g_settings_new ("org.gnome.software");
+       default_branch = flatpak_remote_get_default_branch (xremote);
        if (g_settings_get_boolean (settings, "filter-default-branch") &&
-           flatpak_remote_get_default_branch (xremote) != NULL) {
+           default_branch != NULL) {
                g_autoptr(XbBuilderFixup) fixup = NULL;
                fixup = xb_builder_fixup_new ("FilterDefaultbranch",
                                              gs_flatpak_filter_default_branch_cb,