MUC: Prevent traceback in case of no history items to serialize (fixes #1083)

8 years ago · b21efabb68
parent 8aa6920ff5
commit b21efabb68
1 changed files with 1 additions and 1 deletions
--- a/plugins/muc/muc.lib.lua
+++ b/plugins/muc/muc.lib.lua
@ -1378,7 +1378,7 @@ function room_mt:freeze(live)
 			end
 		end
 		local history = self._history;
-		if history then
+		if history and history[1] ~= nil then
 			state._last_message = st.preserialize(history[#history].stanza);
 			state._last_message_at = history[#history].timestamp;
 		end