$ git clone -n https://src.fedoraproject.org/rpms/erlang.git /var/lib/mock/f31-build-61853-28978/root/chroot_tmpdir/scmroot/erlang
Cloning into '/var/lib/mock/f31-build-61853-28978/root/chroot_tmpdir/scmroot/erlang'...
$ git reset --hard 4ed5ede65ec8e6423ba2fe023d5a4d4f51ac3a0c
HEAD is now at 4ed5ede - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild