cvs surprise party

[y-lamkim]

I do
> cvs update  -q -n  .
? StdSchema_gp_Mat.ixx

i then do
> cvs add StdSchema_gp_Mat.ixx

CVS says :

StdSchema_gp_Mat.ixx added independently by second party

 what does it mean ??

 Thanks for help.
            Yan