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after saving file and pressing ctrl+z to discard the last change, "undo" discard the last two changes, it should be one. to reproduce the bug, please follow this steeps: 1. make a new file/document in NetBeans IDE 2. enter three new lines 3. go to first line and enter a char (one char!) 3. go to second line (by using arrow keys!) and enter a char (one char!) 4. save the file 5. go to third line (by using arrow keys!) and enter a char (one char!) 6. press ctrl+z to discard the last char. result: line three AND two are empty. PS: in german NetBeans IDE Build 201007230001 (PHP) also the label of undo and redo functions in the edit menu are wrong. Redo is currently described as "Strg+Z", but it is Undo. Correct are: "Redo (Strg+Y)" and "Undo (Strg+Z)"
Reproducible on NetBeans IDE Dev (Build 201007290001).
*** This bug has been marked as a duplicate of bug 188409 ***