fix: 修复 mousemove 时重复设置数据的问题

[heiyexing]

PR includes

• [x] fixed #102

[github-actions[bot]]

🎊 PR Preview b5ad11e32ac06a1b400d92bb0dc921d54fb6289f has been successfully built and deployed to https://antvis-L7Draw-preview-pr-109.surge.sh

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