Fix hook update

[theKashey]

Related: #1294

The problem

As a final action hotComponentCompare/compareComponents is doing updateProxyById, EVEN if they are the same, thus moving getHotGeneration forward and invalidating all hooks, causing infinite update loop.

Fix

🤷‍♂️Don't do it - if a proxy is not updated - don't change counter.

[codecov-io]

Codecov Report

Merging #1298 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1298      +/-   ##
==========================================
+ Coverage   79.01%   79.02%   +0.01%     
==========================================
  Files          39       39              
  Lines        1625     1626       +1     
  Branches      416      417       +1     
==========================================
+ Hits         1284     1285       +1     
  Misses        277      277              
  Partials       64       64

Impacted Files	Coverage Δ
src/reconciler/proxies.js	97.77% <100%> (ø)	⬆️
src/proxy/createClassProxy.js	98.77% <100%> (ø)	⬆️

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