[epiphany] ephy-bookmark: Fix memory leak caused by setting the tags property multiple times

[Gabriel - Cristian Ivascu <gabrielivascu src gnome org>]

commit 51bdbc986a66ee627a46b00b6430b46aaeb58601
Author: Gabriel Ivascu <ivascu gabriel59 gmail com>
Date:   Tue Oct 4 20:10:40 2016 +0300

    ephy-bookmark: Fix memory leak caused by setting the tags property multiple times

 src/bookmarks/ephy-bookmark.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/bookmarks/ephy-bookmark.c b/src/bookmarks/ephy-bookmark.c
index 559a1c2..8e319c5 100644
--- a/src/bookmarks/ephy-bookmark.c
+++ b/src/bookmarks/ephy-bookmark.c
@@ -59,6 +59,8 @@ ephy_bookmark_set_property (GObject      *object,
 
   switch (prop_id) {
     case PROP_TAGS:
+      if (self->tags != NULL)
+        g_sequence_free (self->tags);
       self->tags = g_value_get_pointer (value);
       break;
     case PROP_TIME_ADDED: