[PATCH 1/4] Do not replace multipart/signed part with content part when doing verification.

Some folks have complained about the part renumbering that occurs when the entire multipart/signed part is replaced with the part contents after verification. This is primarily because it incurs an additional computational cost to retrieve individual parts, since verification has to be performed

[PATCH 1/4] Do not replace multipart/signed part with content part when doing verification.

Some folks have complained about the part renumbering that occurs when the entire multipart/signed part is replaced with the part contents after verification. This is primarily because it incurs an additional computational cost to retrieve individual parts, since verification has to be performed