SQL Developer Formatting

Hi,

I am using SQL Developer Version 3.1.07 and found strange behanviour of SQL Developer formatting(Ctrl+F7). Here is an example.

DECLARE
  X1 NUMBER :=0;
  X2 NUMBER :=0;
  X3 DATE;
  X4 VARCHAR2(10) :='TEST';
BEGIN
  NULL;
END;

If this code section is manually formatted using TAB, using Ctrl+F7 reverts it back to its original format as done previously. Subsequent attempts to reformat always yields the same results.

Manual Format:

DECLARE
  X1 number               :=0;
  X2 NUMBER               :=0;
  X3 date;
  X4 varchar2(10)         :='TEST';
  x5  date                :=sysdate
BEGIN
  NULL;
END;

Using Ctrl + F7 brings back to original state.

DECLARE
  X1 NUMBER :=0;
  X2 NUMBER :=0;
  X3 DATE;
  X4 VARCHAR2(10) :='TEST';