$ git clone -n https://src.fedoraproject.org/rpms/libnss-mysql.git /var/lib/mock/f31-build-69719-30339/root/chroot_tmpdir/scmroot/libnss-mysql
Cloning into '/var/lib/mock/f31-build-69719-30339/root/chroot_tmpdir/scmroot/libnss-mysql'...
$ git reset --hard 1915a213305505a51aac36f36fc20a11e8bdac9d
HEAD is now at 1915a21 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild