$ git clone -n https://src.fedoraproject.org/rpms/cppcodec.git /var/lib/mock/f40-build-2291364-56036/root/chroot_tmpdir/scmroot/cppcodec
Cloning into '/var/lib/mock/f40-build-2291364-56036/root/chroot_tmpdir/scmroot/cppcodec'...
$ git fetch origin d465d7ba61cb88df4ac9e7586802ac21b9f89cbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cppcodec
 * [new ref]         d465d7ba61cb88df4ac9e7586802ac21b9f89cbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d465d7b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild