From 9a63fdd773d2d37602d377d9d279c42cb6280fc5 Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Fri, 16 Mar 2018 17:36:49 +0000
Subject: MUC: Use empty string if no subject provided (thanks pep+)

---
 plugins/muc/subject.lib.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/muc/subject.lib.lua b/plugins/muc/subject.lib.lua
index 6f118b43..200b262d 100644
--- a/plugins/muc/subject.lib.lua
+++ b/plugins/muc/subject.lib.lua
@@ -14,7 +14,7 @@ local valid_roles = muc_util.valid_roles;
 
 local function create_subject_message(from, subject)
 	return st.message({from = from; type = "groupchat"})
-		:tag("subject"):text(subject):up();
+		:tag("subject"):text(subject or ""):up();
 end
 
 local function get_changesubject(room)
-- 
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