NiceScroll dragging text content will cause automatic scrolling later

after joining the NiceScroll, if you select and drag the text inside, then if the mouse appears over the div, the scroll bar will automatically scroll up, and if the mouse moves behind the div, it will automatically scroll down. Is this NiceScroll"s own BUG? Is there any good solution
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the concrete effect is like clicking the middle mouse button in a web page. If you move the mouse up, the web page will scroll up, and if you move the mouse down, the web page will scroll down

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Nov.08,2021

normal browser web page is very long. If you select the text to scroll down from the top, the scroll bar on the right is also moving. Normal logic

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