Fix weird copy with jump to key as well

Fixes #9169

Author: Siedlerchr

src/main/java/org/jabref/gui/maintable/MainTable.java

@@ -206,11 +206,15 @@ public MainTable(MainTableDataModel model,
 
     /**
      * This is called, if a user starts typing some characters into the keyboard with focus on main table. The {@link MainTable} will scroll to the cell with the same starting column value and typed string
+     * If the user presses any other special key as well, e.g. alt or shift we don't jump
      *
      * @param sortedColumn The sorted column in {@link MainTable}
      * @param keyEvent     The pressed character
      */
     private void jumpToSearchKey(TableColumn<BibEntryTableViewModel, ?> sortedColumn, KeyEvent keyEvent) {
+        if (keyEvent.isAltDown() || keyEvent.isControlDown() || keyEvent.isMetaDown() || keyEvent.isShiftDown()) {
+            return;
+        }
         if ((keyEvent.getCharacter() == null) || (sortedColumn == null)) {
             return;
         }