Observed an issue while creating new table

I have observed an issue while creating new table with pgAdmin3 which I suspect is wrong,

Step-1) Open new table dialog 

- Enter Name: test

- Click on Inheritance tab

provide 2 table to inherit from

test1 [has columns: a,b]

test2 [has columns: x,y,z]

Click  on Ok to create table.

Step-2) Now expand newly created table and click on columns and also expand it

Now click on each columns e.g.(a,b,x,y,z)

and check properties window for Inherited property, there you will see that each column will display as Inherited: Yes (from table test1)

e.g.

a ==>  Inherited: Yes (from table test1)

b ==>  Inherited: Yes (from table test1)

x ==>  Inherited: Yes (from table test1)

y ==>  Inherited: Yes (from table test1)

z ==>  Inherited: Yes (from table test1)

 

PFA screenshot for your reference.

Regards,

Murtuza