$ git clone -n https://src.fedoraproject.org/rpms/python-defusedxml.git /var/lib/mock/f45-build-30343-644/root/chroot_tmpdir/scmroot/python-defusedxml
Cloning into '/var/lib/mock/f45-build-30343-644/root/chroot_tmpdir/scmroot/python-defusedxml'...
$ git fetch origin 8d6c5bcc5dd37dd4db4144e2275858b618a4ec28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-defusedxml
 * [new ref]         8d6c5bcc5dd37dd4db4144e2275858b618a4ec28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d6c5bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild