# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1475961413 -7200
# Node ID 16c397f18526d7986e51119809e6f2178a28ce36
# Parent  7153fc86ae7daf15ee6fe6270c8bb53c0dcd9fd8
Prevent multiple entries for any given event/recurrence in free/busy providers.

diff -r 7153fc86ae7d -r 16c397f18526 imiptools/stores/common.py
--- a/imiptools/stores/common.py	Sun Jun 05 19:36:32 2016 +0200
+++ b/imiptools/stores/common.py	Sat Oct 08 23:16:53 2016 +0200
@@ -296,7 +296,10 @@
             return False
 
         dt_string, t = t
-        t.append((provider.get_uid(), provider.get_recurrenceid()))
+        details = (provider.get_uid(), provider.get_recurrenceid())
+
+        if not details in t:
+            t.append(details)
 
         return self._set_freebusy_providers(user, dt_string, t)