Feature/fix import on bootstrap

[boazpoolman]

What does it do?

Fix the importOnBootstrap feature

Why is it needed?

The importOnBootstrap feature is broken since 1.2 as per #109

How to test it?

I've included new integration tests in this PR.
They are currently failing with the same error as described in #109.
As soon as we've fixed those tests the PR can be merged and the issue will be fixed.

Related issue(s)/PR(s)

#109

[codecov-commenter]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (d101e3c) 0.00% compared to head (19f5ba1) 100.00%.

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Additional details and impacted files

@@              Coverage Diff              @@
##           master      #111        +/-   ##
=============================================
+ Coverage        0   100.00%   +100.00%     
=============================================
  Files           0         8         +8     
  Lines           0        27        +27     
  Branches        0         3         +3     
=============================================
+ Hits            0        27        +27     

Flag	Coverage Δ
unit	100.00% <100.00%> (?)

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Files	Coverage Δ
playground/__tests__/helpers.js	100.00% <100.00%> (ø)
playground/config/plugins.js	100.00% <100.00%> (ø)

... and 6 files with indirect coverage changes

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