$ git clone -n https://src.fedoraproject.org/rpms/samdump2.git /var/lib/mock/f40-build-804799-144615/root/chroot_tmpdir/scmroot/samdump2
Cloning into '/var/lib/mock/f40-build-804799-144615/root/chroot_tmpdir/scmroot/samdump2'...
$ git fetch origin 6bfc94c8b822aa95f7e2b44c0d60f632c6d172b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/samdump2
 * [new ref]         6bfc94c8b822aa95f7e2b44c0d60f632c6d172b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bfc94c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild