Naming a variable 'LifeSpan' causes the default value to be reset after closing the editor

Customer reported this issue in Salesforce. I repro'd this issue in 4.25.3, 4.25.4, and 4.26. Therefore marking it as not a regression.

Renaming the variable something like "LifeTimer" does not result in this issue happening, it seems like it's just when the variable name is "LifeSpan".

1. Create a blank bp project
2. Create a new blueprint based on actor
3. Open the blueprint and create a new float variable named "LifeSpan"
4. Set the value of the float variable to 60.0
5. Compile and save
6. Reload the BP Asset or 
   1. Close the editor and Epic Games Launcher
   2. Re-open the project and inspect the float variable

Expected: LifeSpan variable stays set to 60.0

Result: LifeSpan variable is set to 0.0

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