$ git clone -n https://src.fedoraproject.org/rpms/sediment.git /var/lib/mock/f45-build-35827-699/root/chroot_tmpdir/scmroot/sediment
Cloning into '/var/lib/mock/f45-build-35827-699/root/chroot_tmpdir/scmroot/sediment'...
$ git fetch origin 1eaa6e6b82183182e326ae0c42dff29c6fac8108:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sediment
 * [new ref]         1eaa6e6b82183182e326ae0c42dff29c6fac8108 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1eaa6e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild