Column Sequence gets added to child FK Column (Snowflake)

If I define a sequence on a PK column and create an FK with it, the child table will add a default in it's DDL. In the example below, TABLE_2.COL_1 has a default value. It shouldn't inherit the default value.

CREATE OR REPLACE TABLE TABLE_1
(
 COL_1          number NOT NULL DEFAULT SEQ_COL_1.nextval,
 INSERT_TS      timestamp NOT NULL, -- From template: "ETL_METADATA"
 LAST_UPDATE_TS timestamp, -- From template: "ETL_METADATA"
 CONSTRAINT PK_TABLE_1 PRIMARY KEY ( COL_1 )
);

CREATE OR REPLACE TABLE TABLE_2
(
 COL_1          number NOT NULL DEFAULT SEQ_COL_1.nextval,
 INSERT_TS      timestamp NOT NULL, -- From template: "ETL_METADATA"
 LAST_UPDATE_TS timestamp, -- From template: "ETL_METADATA"
 CONSTRAINT FK_31 FOREIGN KEY ( COL_1 ) REFERENCES TABLE_1 ( COL_1 )
);