Release 2 cherry pick#3971

Merged

chriselion merged 5 commits intorelease_2_branchfrom

release-2-cherry-pick

May 15, 2020

Commits on May 15, 2020

[bug-fix] Fix issue with initialize not resetting step count (#3962)

Ervin T
authored and
Chris Elion
committed
Develop better error message for #3953 (#3963)

vincentpierre
authored and
Chris Elion
committed
Fix #3932, stop the editor from going into a loop when a prefab is selected. (#3949)

surfnerd
authored and
Chris Elion
committed
Minor doc updates to release

Ervin Teng
authored and
Chris Elion
committed
add unit tests and fix exceptions (#3930)
Chris Elion
committed