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-rw-r--r--plugins/muc/muc.lib.lua4
1 files changed, 2 insertions, 2 deletions
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua
index 556916f2..31e6809f 100644
--- a/plugins/muc/muc.lib.lua
+++ b/plugins/muc/muc.lib.lua
@@ -676,8 +676,8 @@ function room_mt:process_form(origin, stanza)
dirty = dirty or (self:get_changesubject() ~= (not changesubject and true or nil))
module:log('debug', 'changesubject=%s', changesubject and "true" or "false")
- local historylength = fields['muc#roomconfig_historylength'];
- dirty = dirty or (self:get_historylength() ~= (historylength and true or nil))
+ local historylength = tonumber(fields['muc#roomconfig_historylength']);
+ dirty = dirty or (historylength and (self:get_historylength() ~= historylength));
module:log('debug', 'historylength=%s', historylength)