Program window, code pane is emptied when using quoted name with no spaces before and after the name

If you have the following (valid) code in e.g. a package, the content pane to the left of the package code is shown as empty:

Code

PROCEDURE"MyFirstMethod"IS -- no spaces
BEGIN
  NULL;
END;

PROCEDURE "MySecondMethod" IS
BEGIN
  NULL;
END;

If you add one space after PROCEDURE and one space before IS in the first line of the code, it works as expected.