$ git clone -n https://src.fedoraproject.org/rpms/ckeditor.git /var/lib/mock/f45-build-4132-330/root/chroot_tmpdir/scmroot/ckeditor
Cloning into '/var/lib/mock/f45-build-4132-330/root/chroot_tmpdir/scmroot/ckeditor'...
$ git fetch origin a38b88ae44b549b2375d31472ddd0d3f57061f7f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ckeditor
 * [new ref]         a38b88ae44b549b2375d31472ddd0d3f57061f7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a38b88a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild