$ git clone -n https://src.fedoraproject.org/rpms/nss-altfiles.git /var/lib/mock/f31-build-48078-27001/root/chroot_tmpdir/scmroot/nss-altfiles
Cloning into '/var/lib/mock/f31-build-48078-27001/root/chroot_tmpdir/scmroot/nss-altfiles'...
$ git reset --hard 73fe9be558cf1dd7e332d0b0a179866493c66083
HEAD is now at 73fe9be - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild