Array property of a User Defined Struct is corrupted when additional properties are added to the struct

Modifying a UserDefinedStruct can lead to data corruption in Blueprint array properties.

1. Create a UserDefinedStruct with two int properties "MyStruct"
2. Add an array property of type MyStruct to a Blueprint
3. Compile, add a few entries to the array and set values for each entry

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1. Add a third property to MyStruct (I was able to consistently repro using a float)
2. Recompile the Blueprint and note that some of the values in the array entries get stomped. 

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