[nautilus/692-segfault-during-find-as-you-type-in-libgobject] search-engine-recent: Give back a ref to idle

[António Fernandes <antoniof src gnome org>]

commit eb39505b3f30eaeafe644cd61d3213375f0e3414
Author: António Fernandes <antoniof gnome org>
Date:   Sat Oct 13 22:39:46 2018 +0100

    search-engine-recent: Give back a ref to idle
    
    The search_thread_add_hits_idle() callback was given a reference to
    the engine in commit 9d16ff2e21b49d0efa7ca51ff3e20c450aaa3c5e
    However, this reference was withdrawn in commit 4c6d4eea995a66e80fb21ee83b66954d1ce71c08
    
    This causes crashes when searching.
    
    Restore reference count increase to fix it.
    
    Fixes https://gitlab.gnome.org/GNOME/nautilus/issues/692

 src/nautilus-search-engine-recent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/nautilus-search-engine-recent.c b/src/nautilus-search-engine-recent.c
index 8cc7b88f0..d265c1716 100644
--- a/src/nautilus-search-engine-recent.c
+++ b/src/nautilus-search-engine-recent.c
@@ -339,7 +339,7 @@ nautilus_search_engine_recent_start (NautilusSearchProvider *provider)
                               nautilus_query_get_recursive (self->query),
                               location))
     {
-        search_add_hits_idle (self, NULL);
+        search_add_hits_idle (g_object_ref (self), NULL);
         return;
     }