fixbug:no close dl when del node

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 59.47%. Comparing base (2e7c046) to head (df1c7f3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1984 +/- ## =========================================== - Coverage 77.29% 59.47% -17.82% =========================================== Files 102 102 Lines 17572 17574 +2 =========================================== - Hits 13582 10453 -3129 - Misses 3990 7121 +3131 ```

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