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When an external change happens to a file (for example, if a user accidentally overwrites a source file with an external file), the IDE automatically takes the change and updates the editor with it. Other IDEs present a dialog asking the user to confirm this is what they wanted, but netbeans does not, and no undo option is available for this operation. I suggest either: * Presenting a confirm dialog to the user * Saving an entry to the local history so the user can revert if they wish
+1 for this. Currently there is a confirm dialog box, but there should be a third option: Merge changes. In either case, the UNDO NEEDS TO WORK! The suggested "add entry to local history" would be great so we can do merge/diff manually.