java.lang.IndexOutOfBoundsException: Invalid line index=-141 < 0
   at org.netbeans.modules.editor.lib2.document.LineRootElement.getElement(LineRootElement.java:87)
   at org.openide.text.NbDocument$DocumentRenderer.run(NbDocument.java:923)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1386)
   at org.openide.text.NbDocument$DocumentRenderer.renderToInt(NbDocument.java:898)
   at org.openide.text.NbDocument.findLineOffset(NbDocument.java:201)
   at org.netbeans.modules.merge.builtin.visualizer.MergePanel.addEmptyLines(MergePanel.java:1655)
   at org.netbeans.modules.merge.builtin.visualizer.MergePanel.addEmptyLines1(MergePanel.java:1678)
   at org.netbeans.modules.merge.builtin.visualizer.MergeControl.insertEmptyLines(MergeControl.java:172)
   at org.netbeans.modules.merge.builtin.visualizer.MergeControl.initialize(MergeControl.java:143)
   at org.netbeans.modules.merge.builtin.visualizer.GraphicalMergeVisualizer.createView(GraphicalMergeVisualizer.java:135)
   at org.netbeans.modules.git.ui.conflicts.ResolveConflictsExecutor$2.run(ResolveConflictsExecutor.java:198)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)