$ git clone -n https://src.fedoraproject.org/rpms/python-zombie-imp.git /var/lib/mock/f45-build-33751-674/root/chroot_tmpdir/scmroot/python-zombie-imp
Cloning into '/var/lib/mock/f45-build-33751-674/root/chroot_tmpdir/scmroot/python-zombie-imp'...
$ git fetch origin 60ea6befe9b8eaebca20e46cfe989626e924fbbb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-zombie-imp
 * [new ref]         60ea6befe9b8eaebca20e46cfe989626e924fbbb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60ea6be Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild