fix: instance beforeUpdate hooks should not modify any Raw if there are no Raw assignment in them

[JimmyDaddy]

att

[codecov-commenter]

Codecov Report

Merging #283 (73bb8fb) into master (0c5e6bc) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #283      +/-   ##
==========================================
+ Coverage   97.51%   97.55%   +0.04%     
==========================================
  Files          44       44              
  Lines        3222     3236      +14     
==========================================
+ Hits         3142     3157      +15     
+ Misses         80       79       -1     

Impacted Files	Coverage Δ
src/bone.js	98.16% <100.00%> (+0.17%)	⬆️
src/setup_hooks.js	98.88% <100.00%> (+0.18%)	⬆️

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