Fix access checking.

[rthideaway]

Fixing access checking as we recently discovered it was misimplemented, see #920 (comment)

[rthideaway]

@fubhy please check, these are all instances with incorrect access checking. I'm going to fix our PRs as well

[codecov]

Codecov Report

Merging #921 into 8.x-4.x will not change coverage.
The diff coverage is 50%.

@@            Coverage Diff             @@
##             8.x-4.x     #921   +/-   ##
==========================================
  Coverage      66.43%   66.43%           
  Complexity       587      587           
==========================================
  Files             92       92           
  Lines           1299     1299           
==========================================
  Hits             863      863           
  Misses           436      436

Impacted Files	Coverage Δ	Complexity Δ
...GraphQL/DataProducer/Entity/EntityTranslations.php	71.42% <0%> (ø)	11 <0> (ø)	⬇️
.../GraphQL/DataProducer/Entity/EntityTranslation.php	60% <0%> (ø)	8 <0> (ø)	⬇️
...n/GraphQL/DataProducer/Entity/EntityLoadByUuid.php	57.14% <100%> (ø)	21 <0> (ø)	⬇️
.../Plugin/GraphQL/DataProducer/Entity/EntityLoad.php	95.23% <100%> (ø)	21 <0> (ø)	⬇️

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[fubhy]

Sweet, thanks!

[klausi]

I think we should have a code comment for all those checks similar as in #920 , otherwise someone might change this back to isForbidden() in the future.