[BUG]Find a bug : Multiple merge cell selection error(keyboard shift key)

[jaekwankoo]

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** Describe the bug **. <! --- A clear and concise description of what the bug is.>.

** To Reproduce **. <! --- Steps to reproduce the behavior.>.

1. The first step : Create two merge cells. One is in the first row merged cell. One is more than one row of merged cell.
2. The second step :. merge cell multi select (keyborad shift key selection).
3. The third step : The app stops running and memory lags.
4. See error : The app stops running and memory lags.

** What is expected.

<! --- A clear and concise description of what you expected to happen.>.

** Screenshots or demo **. <! --- If applicable add screenshots or online demo to help explain your problem.We will be more accurate when we retest.>. [image] (https://user-images.githubusercontent.com/101375659/185563142-b625de89-d1a5-4b2d-9d32-5e582505a321.png).

https://user-images.githubusercontent.com/101375659/185565331-686c35de-fbb6-4fef-a3f9-5f7068f514a5.mp4

** Environment **.

• OS : < ! -- [Windows, Linux, Mac. e.g] -- > Windows10.
• Browser Version : < ! -- [e.g Chrome Version 84.0.4147.105 ( Official Build ) ( 64-bit ) Safari Firefox, Edge] -- > Chrome 104.0.5112.81.
• Luckysheet Version : < ! -- [latest, e.g 1.0.1] -- > latest.

** Additional context **. <! --- Add any other context about the problem here.>.