$ git clone -n https://src.fedoraproject.org/rpms/pdfposter.git /var/lib/mock/f40-build-2301168-56766/root/chroot_tmpdir/scmroot/pdfposter
Cloning into '/var/lib/mock/f40-build-2301168-56766/root/chroot_tmpdir/scmroot/pdfposter'...
$ git fetch origin 306ee1d4a286faa1e8198a29fa45eff81823ab2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdfposter
 * [new ref]         306ee1d4a286faa1e8198a29fa45eff81823ab2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 306ee1d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild