Fix nested fragments on relations

[ChristiaanScheermeijer]

This pull request will fix nested fragments on relations combined with properties.

The following query resulted in an error:

fragment moreProperties on Camera {
  type
}

fragment properties on CameraMan {
  cameras {
    id
    ...moreProperties
  }
}

query {
  CameraMan {
    ...properties
  }
}

Caused by #377

[codecov-io]

Codecov Report

Merging #385 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #385   +/-   ##
=======================================
  Coverage   96.42%   96.42%           
=======================================
  Files          24       24           
  Lines        2856     2856           
=======================================
  Hits         2754     2754           
  Misses        102      102

Impacted Files	Coverage Δ
src/selections.js	97.72% <ø> (ø)	⬆️

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[johnymontana]

Great - thanks @ChristiaanScheermeijer for the quick fix

[ChristiaanScheermeijer]

Glad I can help :-)

This issue is probably also suffering from the same bug: #384

[malikalimoekhamedov]

Definitely solves my issue.