withJob has workingProps state to ignore a old work's late resolve.

[dehypnosis]

To solve issue #45 (Need to abort an old work when a new work started).

I made a simple solution.

• When new work starts, store the reference of current props object as wokringProps in the component.
• And when job finished, compare the current props reference (in closure) with the stored wokringProps reference.
• If references are not equal, just ignore the result as like ignore unmounted component

I'd like you to take a look at it.

[codecov[bot]]

Codecov Report

Merging #46 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #46   +/-   ##
=======================================
  Coverage   94.17%   94.17%           
=======================================
  Files           5        5           
  Lines         103      103           
  Branches       31       31           
=======================================
  Hits           97       97           
  Misses          6        6

Impacted Files	Coverage Δ
src/withJob.js	91.52% <100%> (ø)	:arrow_up:

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[dehypnosis]

I forgot to make a new branch for this feature.. I will make new branch for this feature and rewrite pull request