$ git clone -n https://src.fedoraproject.org/rpms/python-b4.git /var/lib/mock/f41-build-896690-16936/root/chroot_tmpdir/scmroot/python-b4
Cloning into '/var/lib/mock/f41-build-896690-16936/root/chroot_tmpdir/scmroot/python-b4'...
$ git fetch origin 875ebb241afeeef097d3a2e8fb447508838a3026:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-b4
 * [new ref]         875ebb241afeeef097d3a2e8fb447508838a3026 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 875ebb2 Rebuilt for Python 3.13