[CM][BUG]When create one column, and click order arrow, and put the column under the inheritance column, it will be pop error

1
CREATE TABLE "addcol"
UNDER "code","athlete"
CLASS ATTRIBUTE(
"class1" integer DEFAULT 0,
"class2" character(1)
)
(
"instance1" bit varying(4096) DEFAULT X'616161' UNIQUE,
"instance2" date DEFAULT DATE'01/01/2011' UNIQUE,
"test1" character(1) DEFAULT '4' NOT NULL UNIQUE,
"testi3" integer DEFAULT 0 UNIQUE,
"testi4" double DEFAULT 3
);
CREATE INDEX "notunique" ON "addcol"("testi4");

2 Click edit table
Choose f_name,add one column, it will pop

"ALTER TABLE "addcol" ADD COLUMN "test" bit varying(4096) AFTER f_name;
Error code: -444
Invalid attribute name: "f_name"."