Wiki states that `-t X -t Y` should work with 2.9+ but it is not

Hi there,

i'm trying to use the following command line argument pattern:

-k Key1 -v Value1 -k Key2 -v Value2

but it throws an error `... is defined multiple times` even though this [Wiki page](https://github.com/commandlineparser/commandline/wiki/CommandLine-Grammar#sequence-option) states that this is supported.

Is it only possible with unparsing?

So lonG

先重現 issue 中所示的命令列模式，並將其行為與 Wiki 的序列選項部分進行比較。檢查回報的版本是否支援重複使用 `-k` 和 `-v` 選項；當行為已修正，或 Wiki 清楚記錄該限制及支援的用法時，即視為完成。

由索引模型根據 Issue 內容生成。