$ git clone -n https://src.fedoraproject.org/rpms/python-importlib-metadata.git /var/lib/mock/f45-build-31049-650/root/chroot_tmpdir/scmroot/python-importlib-metadata
Cloning into '/var/lib/mock/f45-build-31049-650/root/chroot_tmpdir/scmroot/python-importlib-metadata'...
$ git fetch origin 8273a982327501abd64ada1316dded09b6a01de7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-importlib-metadata
 * [new ref]         8273a982327501abd64ada1316dded09b6a01de7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8273a98 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild