$ git clone -n https://src.fedoraproject.org/rpms/nss-pem.git /var/lib/mock/f31-build-63650-29414/root/chroot_tmpdir/scmroot/nss-pem
Cloning into '/var/lib/mock/f31-build-63650-29414/root/chroot_tmpdir/scmroot/nss-pem'...
$ git reset --hard a35b33b9dc1dd5553c011715e569e7bf5107dee4
HEAD is now at a35b33b - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild