$ git clone -n https://src.fedoraproject.org/rpms/erlang-kvc.git /var/lib/mock/f45-build-8358-385/root/chroot_tmpdir/scmroot/erlang-kvc
Cloning into '/var/lib/mock/f45-build-8358-385/root/chroot_tmpdir/scmroot/erlang-kvc'...
$ git fetch origin 4f86e3e7125e855861e5fea8be42f9295e4c2048:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-kvc
 * [new ref]         4f86e3e7125e855861e5fea8be42f9295e4c2048 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f86e3e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild