RESUMABLE: In 4.4.1, the third and fourth paragraphs conflict

[LPardue]

During WGLC review, @MikeBishop raised the following issue on https://lists.w3.org/Archives/Public/ietf-http-wg/2025JulSep/0123.html

In 4.4.1, the third and fourth paragraphs conflict. The fourth suggests that the client can wait to see that the server got the last byte before indicating the end of the upload to the server, but the third says that Upload-Complete: ?1 "is true" if the request goes to the final byte. Perhaps this should read "If its value is true, the end..." without claiming the inverse is true?