Fixes composer to discard changes when building the phar.

[typhonius]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@760469d). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #127   +/-   ##
=========================================
  Coverage          ?   93.24%           
  Complexity        ?      341           
=========================================
  Files             ?       29           
  Lines             ?     1361           
  Branches          ?        0           
=========================================
  Hits              ?     1269           
  Misses            ?       92           
  Partials          ?        0           

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