fix binary compatibility with old version

[J0s3f]

should fix #677

[codecov-commenter]

Codecov Report

Merging #692 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #692   +/-   ##
=========================================
  Coverage     88.26%   88.26%           
  Complexity      730      730           
=========================================
  Files            69       69           
  Lines          2540     2540           
  Branches        268      268           
=========================================
  Hits           2242     2242           
  Misses          210      210           
  Partials         88       88           

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/influxdb/dto/Point.java	93.36% <ø> (ø)	53.00 <0.00> (ø)

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[codecov-io]

Codecov Report

Merging #692 into master will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #692      +/-   ##
============================================
- Coverage     59.09%   59.07%   -0.03%     
  Complexity      413      413              
============================================
  Files            69       69              
  Lines          2540     2541       +1     
  Branches        268      268              
============================================
  Hits           1501     1501              
- Misses          972      973       +1     
  Partials         67       67              

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/influxdb/dto/Point.java	92.14% <100.00%> (-0.39%)	52.00 <0.00> (ø)

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