A bug in property in Logseq 0.10.12

Hi. I found a problem in 0.10.12
When I create new properties:

class:: 
parent:: 
type:: [[周目标]]
tags:: 
start-date:: 
finish-date::

If the value of property is nothing, it sometimes automatically add [[ ]] to property.



I never see this problem in 0.10.9.
I need to add a space to all properties in template. But you know the value of the last property can not be a space. So I have to add a number to let it not be nothing to protect it.

Could you please have check?