$ git clone -n https://src.fedoraproject.org/rpms/genromfs.git /var/lib/mock/f31-build-53677-27891/root/chroot_tmpdir/scmroot/genromfs
Cloning into '/var/lib/mock/f31-build-53677-27891/root/chroot_tmpdir/scmroot/genromfs'...
$ git reset --hard 3e3157afb5a250f370ef029993e73e42fd253773
HEAD is now at 3e3157a - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild