$ git clone -n https://src.fedoraproject.org/rpms/erlang-xmlrpc.git /var/lib/mock/f45-build-8484-389/root/chroot_tmpdir/scmroot/erlang-xmlrpc
Cloning into '/var/lib/mock/f45-build-8484-389/root/chroot_tmpdir/scmroot/erlang-xmlrpc'...
$ git fetch origin edd06dd77c8c29319b527e64a88f2044f2fe595d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-xmlrpc
 * [new ref]         edd06dd77c8c29319b527e64a88f2044f2fe595d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at edd06dd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild