$ git clone -n https://src.fedoraproject.org/rpms/rubygem-thin.git /var/lib/mock/f31-build-53137-27808/root/chroot_tmpdir/scmroot/rubygem-thin
Cloning into '/var/lib/mock/f31-build-53137-27808/root/chroot_tmpdir/scmroot/rubygem-thin'...
$ git reset --hard f553ae66aa940bb86b30f0c672ac36d1f77c126b
HEAD is now at f553ae6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild