sync: Fix copied and copiedBytes

[201341]

Signed-off-by: swj 1186093704@qq.com

[codecov-commenter]

Codecov Report

Merging #1801 (e3c2d0b) into main (51301b5) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1801      +/-   ##
==========================================
+ Coverage   61.82%   61.95%   +0.12%     
==========================================
  Files         135      135              
  Lines       22963    22965       +2     
==========================================
+ Hits        14198    14228      +30     
+ Misses       7172     7145      -27     
+ Partials     1593     1592       -1     

Impacted Files	Coverage Δ
pkg/sync/sync.go	45.17% <100.00%> (+0.19%)	⬆️
pkg/meta/sql.go	66.94% <0.00%> (-0.11%)	⬇️
pkg/meta/base.go	71.69% <0.00%> (+0.50%)	⬆️
pkg/vfs/reader.go	81.56% <0.00%> (+1.27%)	⬆️
pkg/chunk/cached_store.go	80.40% <0.00%> (+2.95%)	⬆️
pkg/fuse/context.go	67.56% <0.00%> (+10.81%)	⬆️

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