$ git clone -n https://src.fedoraproject.org/rpms/erlang-sext.git /var/lib/mock/f45-build-8462-389/root/chroot_tmpdir/scmroot/erlang-sext
Cloning into '/var/lib/mock/f45-build-8462-389/root/chroot_tmpdir/scmroot/erlang-sext'...
$ git fetch origin 07b83ba542a9f77e57361e511dc83fbab42c044f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-sext
 * [new ref]         07b83ba542a9f77e57361e511dc83fbab42c044f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07b83ba Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild