#6613 RSV: deselect rows in alt mode

Former-commit-id: 4058ddf5

plugins/org.jkiss.dbeaver.ui.editors.data/src/org/jkiss/dbeaver/ui/controls/lightgrid/LightGrid.java

@@ -2613,6 +2613,14 @@ public abstract class LightGrid extends Canvas {
             }
 
             if (reverse) {
+                if (alt && newCells.size() == 1) {
+                    // Alt pressed - deselect all cells selected in other rows (#6613)
+                    int row = newCells.get(0).row;
+                    newCells = new ArrayList<>();
+                    for (GridColumn col : selectedColumns) {
+                        newCells.add(new GridPos(col.getIndex(), row));
+                    }
+                }
                 selectedCells.removeAll(newCells);
             } else {
                 if (alt && newCells.size() == 1) {