Minor bug : The "This file has been modified" causes the "mouse up" event to be missing, sticking the selection drag
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Hi,
So when you have a file that has been externally modified, when you focus it’s tab you will get a warning like this.

And when it appears, if you click that focused the tab was into that window, then this started a text drag selection but the “mouse up” event that stops the drag selection has been caught in the dialog window.
Result, now even with no button being pressed, the text selection follows your cursor until you click again.
Here is a video screenshot of this process
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