mount: pass next fh id

[zhijian-pro]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 54.96%. Comparing base (1b2d6c4) to head (66dd161).

Files	Patch %	Lines
pkg/vfs/handle.go	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4509      +/-   ##
==========================================
- Coverage   55.09%   54.96%   -0.14%     
==========================================
  Files         157      157              
  Lines       42583    42586       +3     
==========================================
- Hits        23463    23408      -55     
- Misses      16496    16536      +40     
- Partials     2624     2642      +18     

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