meta/tkv: fix clean stale session

[SandyXSD]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1041 (30729e0) into main (f593dbf) will increase coverage by 0.05%.
The diff coverage is 25.00%.

@@             Coverage Diff              @@
##               main    #1041      +/-   ##
============================================
+ Coverage     45.42%   45.47%   +0.05%     
  Complexity      149      149              
============================================
  Files           146      146              
  Lines         23776    23780       +4     
  Branches        422      422              
============================================
+ Hits          10800    10815      +15     
+ Misses        11639    11627      -12     
- Partials       1337     1338       +1     

Impacted Files	Coverage Δ
pkg/meta/tkv.go	75.65% <25.00%> (-0.26%)	⬇️
pkg/vfs/writer.go	78.64% <0.00%> (-1.02%)	⬇️
pkg/meta/sql.go	69.48% <0.00%> (+0.09%)	⬆️
pkg/vfs/handle.go	86.55% <0.00%> (+0.84%)	⬆️
pkg/vfs/reader.go	79.56% <0.00%> (+3.10%)	⬆️

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