Edge property comments could not be created

[LiuXin11235]

I have tried to create edge with property comments following your instructions given at your official website. However it does not work. I could not see it. Could you look at this issue? I am using the community version of Nebula. Besides, "Alter edge" to add comments also does not work.

CREATE EDGE [IF NOT EXISTS] <edge_type_name>
(
<prop_name> <data_type> [NULL | NOT NULL] [DEFAULT <default_value>] [COMMENT '']
[{, <prop_name> <data_type> [NULL | NOT NULL] [DEFAULT <default_value>] [COMMENT '']} ...]
)
[TTL_DURATION = <ttl_duration>]
[TTL_COL = <prop_name>]
[COMMENT = ''];