Bradley Friedman 3446bc6337
[bugfix] [cpp-ue4] API often tries to set reference to null when calling GetHttpRetryManager (#10277)
* [cpp-ue4] implemented null check and fatal log for GetHttpRetryManager]

* [cpp-ue4] reimplemented null check as checkf rather than Fatail UE_LOG

* [cpp-ue4] regenerated samples and docs
2021-08-27 12:57:14 +08:00
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