fix(Ref): update node if it was changed

[layershifter]

Fixes #3443.

[codecov-io]

Codecov Report

Merging #3474 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3474      +/-   ##
==========================================
+ Coverage   99.82%   99.82%   +<.01%     
==========================================
  Files         172      172              
  Lines        2797     2802       +5     
==========================================
+ Hits         2792     2797       +5     
  Misses          5        5

Impacted Files	Coverage Δ
src/addons/Ref/RefFindNode.js	100% <100%> (ø)	⬆️

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[levithomason]

Released in semantic-ui-react@0.86.0.