[libdazzle] recursive-monitor: ignore things after cancellation

[Christian Hergert <chergert src gnome org>]

commit a7d5350c7683558d42552e8d6c1601dd8ab53dd1
Author: Christian Hergert <chergert redhat com>
Date:   Thu Nov 30 03:06:54 2017 -0800

    recursive-monitor: ignore things after cancellation

 src/files/dzl-recursive-file-monitor.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/files/dzl-recursive-file-monitor.c b/src/files/dzl-recursive-file-monitor.c
index 11a4fe5..098acef 100644
--- a/src/files/dzl-recursive-file-monitor.c
+++ b/src/files/dzl-recursive-file-monitor.c
@@ -119,6 +119,9 @@ dzl_recursive_file_monitor_changed (DzlRecursiveFileMonitor *self,
   g_assert (!other_file || G_IS_FILE (file));
   g_assert (G_IS_FILE_MONITOR (monitor));
 
+  if (g_cancellable_is_cancelled (self->cancellable))
+    return;
+
   if (dzl_recursive_file_monitor_ignored (self, file))
     return;