$ git clone -n https://src.fedoraproject.org/rpms/nss.git /var/lib/mock/f31-build-63634-29412/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/f31-build-63634-29412/root/chroot_tmpdir/scmroot/nss'...
$ git reset --hard 326f5d0c9addb6a2bace4b5278b877bbab04efad
HEAD is now at 326f5d0 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild