Instructions for uploading to bookworm-backports

I am attempting to upload a new version of Electrum to bookworm-backports.  A Debian 
Developer previously uploaded an initial version that cleared the New queue.

https://packages.debian.org/source/stable-backports/electrum[1]

The instructions on the wiki page say to "Use dput[2] (≥ 0.9.6.3+nmu2), dput-ng[3] or 
dupload[4] to upload the resulting package (just like a regular package upload). “

https://wiki.debian.org/BuildingFormalBackports[5]

Using dput 1.1.3 I uploaded the files to ftp.upload.debian.org.

But I received an email in response that had the following information:

    Thank you for your contribution to Debian. 
    Mapping bookworm to stable.
    Mapping stable to proposed-updates. 
    Accepted:

This then went to the stable-new queue instead of backports.

The changes entry for the upload is the following:

    electrum (4.4.5+dfsg1-3~bpo12+1) bookworm-backports; urgency=medium
    .
     * Rebuild for bookworm-backports.

I imagine there is something obvious I am missing that would direct the upload to the 
backports queue, but I have been unable to find it.  Can anyone point me in the right 
direction?

-- 
Soren Stoutner
[email protected]

--------
[1] https://packages.debian.org/source/stable-backports/electrum
[2] https://packages.debian.org/dput
[3] https://packages.debian.org/dput-ng
[4] https://packages.debian.org/dupload
[5] https://wiki.debian.org/BuildingFormalBackports

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