Merge branch 'dev' into catalogue

src/ripple/rpc/handlers/ServerDefinitions.cpp

@@ -464,11 +464,9 @@ public:
     {
         if (!defsHash)
         {
-            // should be unreachable
-            // if this does happen we don't want 0 xor 0 so use a random value
-            // here
-            return uint256(
+            static const uint256 fallbackHash(
                 "DF4220E93ADC6F5569063A01B4DC79F8DB9553B6A3222ADE23DEA0");
+            return fallbackHash;
         }
         return *defsHash;
     }