$ git clone -n https://src.fedoraproject.org/rpms/golang-x-build.git /var/lib/mock/f31-build-90508-32225/root/thebuilddir/tmp/scmroot/golang-x-build
Cloning into '/var/lib/mock/f31-build-90508-32225/root/thebuilddir/tmp/scmroot/golang-x-build'...
$ git reset --hard f61f416221c4c523a402adbd04f313b5731f854e
HEAD is now at f61f416 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild