$ git clone -n https://src.fedoraproject.org/rpms/pdfbox.git /var/lib/mock/f40-build-2372157-60402/root/chroot_tmpdir/scmroot/pdfbox
Cloning into '/var/lib/mock/f40-build-2372157-60402/root/chroot_tmpdir/scmroot/pdfbox'...
$ git fetch origin fad8b3d603b4822d20bc987968d6bb6883e8684d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdfbox
 * [new ref]         fad8b3d603b4822d20bc987968d6bb6883e8684d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fad8b3d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild