Crash when using "Base" as member... is it a reserved word ?

Hello,

I am encountering today a quite bizarre issue, and also quite specific.

When using "Base" as member name (Base being a Serializable class) within a Singleton (using the classic c# singleton implementation), Unity crashes (when saving/loading the scene).

I know "base" is a reserved word, but is "Base" as well? What am I missing ?

To reproduce:

• create a Singleton

• in this singleton, create a "public TestClass Base;"

• TestClass is defined as:

   [System.Serializable]
       public class testclass
       {
           public int stuff;
       }
  
  
  

Notes:

• No crash if with another member name (such as "TheBase")

• No crash outside of a Singleton either (although the Singleton doesn't use any "Base")

• No crash if Base is defined as an int (for instance) rather than a Serializable custom class

Thanks