Bug for brace expansion {01..09..2}

[Clark J. Wang]

Bash version: 4.0.28

Steps to reproduce:

$ echo {01..10..2}
01 03 05 07 09
$ echo {01..09..2}
00001 00003 00005 00007 00009    <--- ???
$ echo {10..01}
10 09 08 07 06 05 04 03 02 01
$ echo {10..01..2}
00010 00008 00006 00004 00002    <--- ???
$