Show Error behavior

There appears to be a minor (but irritating) bug in "show errors" in sqlcl.

I'm using 19.4 on windows 10.

Show Errors (without arguments) is supposed to show compilation errors for the most recently created or altered stored procedure.

If that stored procedure was compiled without errors, Show Errors should show no errors.

But I find that under certain circumstances it shows errors for a successfully compiled stored procedure.

It appears to happen if previously another object by the same name was compiled with errors.

For example

If you have a script creating a package specification and body.

Specification is OK, Body has compilation errors.

Run the script.

As expected after specification Show Error shows nothing, after Body it shows the errors.

Now correct the problem in the body in the script.

Run it again.

Specification is unchanged so still ok, but now Show Error shows the errors that occurred when compiling the body the run before.

See below

I have a script named try_pck.sql

It contains:

prompt ==============

prompt SPECIFICATION

prompt ==============

create or replace package whatever is

  procedure something;

end;

/

sho err

prompt

prompt ==============

prompt BAD BODY

prompt ==============

create or replace package body whatever is

  procedure something is

  begin

    does_not_exist;

  end;

end;

/

sho err

Obviously the body will have compilation errors, so if I run it:

Now I correct the body in the script, so now the script contains:

prompt ==============

prompt SPECIFICATION

prompt ==============

create or replace package whatever is

  procedure something;

end;

/

sho err

prompt

prompt ==============

prompt CORRECTED BODY

prompt ==============

create or replace package body whatever is

  procedure something is

  begin

    null;

  end;

end;

/

sho err

Both specification and body are now OK.

But when I run the script again: