There is absolutely no reason why the patent owner or the USPTO would try to disguise the submitted document. If it is an application of any type, they would not use the term concurrent proceeding to describe it. Concurrent proceeding normally referrs to court cases. From the USPTO site.

<In an ex parte reexamination proceeding before the Office, the patent owner must inform the Office of any prior or concurrent proceedings in which the patent is or was involved such as interferences, reissues, ex parte reexaminations, inter partes reexaminations, or litigation and the results of such proceedings.>

Opty