Bug in TAB (completion)?

Hi, please try the following:

- fire up an xterm and create an empty directory
  # mkdir empty

- go inside and try to complete a filename

  # cd empty
  # ls a<TAB>

  Nothing happens. Ok.

- now open another xterm and put a filename
  called aaa in the directory empty

- go back to the previous xterm: you should have the line
  with the cursor after the "a"

  # ls a

- press again <TAB> to complete. I get

  aaa
  # ls a

  instead of

  # ls aaa



Can you explain this?

Thanks,

8-P

GNU bash, version 2.05b.0(1)-release (i386-redhat-linux-gnu)