Fix multi-label recursive join bug

[andyfengHKU]

No description provided.

[codecov]

Codecov Report

Patch coverage: 92.42% and project coverage change: -0.01 ⚠️

Comparison is base (f6159a4) 91.21% compared to head (33dad65) 91.20%.

❗ Current head 33dad65 differs from pull request most recent head ace38f7. Consider uploading reports for the commit ace38f7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1823      +/-   ##
==========================================
- Coverage   91.21%   91.20%   -0.01%     
==========================================
  Files         777      779       +2     
  Lines       28568    28606      +38     
==========================================
+ Hits        26058    26091      +33     
- Misses       2510     2515       +5     

Impacted Files	Coverage Δ
src/include/planner/join_order_enumerator.h	100.00% <ø> (ø)
...ical_plan/logical_operator/base_logical_operator.h	100.00% <ø> (ø)
src/include/processor/mapper/plan_mapper.h	100.00% <ø> (ø)
src/planner/operator/base_logical_operator.cpp	71.42% <75.00%> (+0.41%)	⬆️
src/planner/join_order/append_extend.cpp	95.37% <90.24%> (-4.63%)	⬇️
...rc/include/binder/expression/node_rel_expression.h	100.00% <100.00%> (ø)
...gical_plan/logical_operator/logical_label_filter.h	100.00% <100.00%> (ø)
src/processor/mapper/map_extend.cpp	96.22% <100.00%> (+1.55%)	⬆️
src/processor/mapper/map_label_filter.cpp	100.00% <100.00%> (ø)
src/processor/mapper/map_recursive_extend.cpp	100.00% <100.00%> (ø)
... and 1 more

... and 2 files with indirect coverage changes

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