innfeed errors: two filenames for same article

[Mirek Luc]

Logs in news.err (INN STABLE-20001113):
<------------------------------------------------------------------------->
Nov 17 16:17:46 pippin innfeed[1846]: ME two filenames for same article:
   @05080000004D0000D7BC0000000000000000@:
   @05080000004D0000D7BA0000000000000000@
Nov 17 16:19:01 pippin innfeed[1846]: ME two filenames for same article:
   @02013A154AE9000A00000000000000000000@:
   @02013A15493A5BEE00000000000000000000@
<------------------------------------------------------------------------->
What does it mean?

-Mirek