$ git clone -n https://src.fedoraproject.org/rpms/python-fixit.git /var/lib/mock/f45-build-30669-647/root/chroot_tmpdir/scmroot/python-fixit
Cloning into '/var/lib/mock/f45-build-30669-647/root/chroot_tmpdir/scmroot/python-fixit'...
$ git fetch origin ae6b6bf230384a98eabc0893ddec6a9176468a54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fixit
 * [new ref]         ae6b6bf230384a98eabc0893ddec6a9176468a54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae6b6bf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild