$ git clone -n https://src.fedoraproject.org/rpms/nailgun.git /var/lib/mock/f31-build-112741-34303/root/chroot_tmpdir/scmroot/nailgun
Cloning into '/var/lib/mock/f31-build-112741-34303/root/chroot_tmpdir/scmroot/nailgun'...
$ git reset --hard 94bfc591d5c4e80eafce73356ac5dd73be3cd28d
HEAD is now at 94bfc59 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild