$ git clone -n https://src.fedoraproject.org/rpms/erlang-ezlib.git /var/lib/mock/f45-build-8315-384/root/chroot_tmpdir/scmroot/erlang-ezlib
Cloning into '/var/lib/mock/f45-build-8315-384/root/chroot_tmpdir/scmroot/erlang-ezlib'...
$ git fetch origin 3792a2e0690c44c341fa47df3af05fc17ea7f894:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-ezlib
 * [new ref]         3792a2e0690c44c341fa47df3af05fc17ea7f894 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3792a2e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild