"onFilter" triggers "onUncheckAll"

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Hi,

I have a problem that occurs when i try to use the filter. The "onFilter" triggers the event "onUncheckAll". For my case, "onUncheckAll" sends an AJAX request to the server, so this is a big problem for me. Can anyone help with this issue?

The issue can be reproduced on the demo site at http://multiple-select.wenzhixin.net.cn/examples#events.html

I'm using the latest version 1.5.2!

Thank you