$ git clone -n https://src.fedoraproject.org/rpms/chewing-editor.git /var/lib/mock/f45-build-6709-350/root/chroot_tmpdir/scmroot/chewing-editor
Cloning into '/var/lib/mock/f45-build-6709-350/root/chroot_tmpdir/scmroot/chewing-editor'...
$ git fetch origin 0fdec3553cf82fb0dd497a6d6c2aa6986324645e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chewing-editor
 * [new ref]         0fdec3553cf82fb0dd497a6d6c2aa6986324645e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fdec35 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild