Fix multiple run

[AlexMost]

There was a problem while using multiple presets (es2015 and react). c-3po plugin was processing ngettext call twice. And it was failing while validation ngettext because es6 syntax was converted to es5:

 1) Extract ngettext with multiple presets should extract ngettext with multiple presets:
     SyntaxError: unknown: First argument must be tagged template expression. You should use 'msgid' tag
  > 1 | <div>{ngettext(msgid`test`, `test`, n)}</div>

Because on a second run msgid was transformed to a function call already.

This problem was not reproducing before because we used to transform to default after extract phase, so ngettext was replaced with _tag_ngettext fun and didn't match on a second run.

[codecov]

Codecov Report

Merging #81 into master will decrease coverage by 0.07%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #81      +/-   ##
==========================================
- Coverage   96.11%   96.03%   -0.08%     
==========================================
  Files          13       13              
  Lines        1055     1059       +4     
  Branches      150      151       +1     
==========================================
+ Hits         1014     1017       +3     
- Misses         41       42       +1

Impacted Files	Coverage Δ
src/plugin.js	94.55% <100%> (-1.95%)	⬇️
src/extract.js	100% <0%> (+3.92%)	⬆️

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