$ git clone -n https://src.fedoraproject.org/rpms/erlang-iconv.git /var/lib/mock/f45-build-8354-385/root/chroot_tmpdir/scmroot/erlang-iconv
Cloning into '/var/lib/mock/f45-build-8354-385/root/chroot_tmpdir/scmroot/erlang-iconv'...
$ git fetch origin 8839a281678555f997638a8218f44a7bf25c8478:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-iconv
 * [new ref]         8839a281678555f997638a8218f44a7bf25c8478 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8839a28 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild