fixup! Disable implicit conversions, that might lose information:

lostmsu · lostmsu · commit 3c458fdd236b · 2021-09-27T15:53:20.000-07:00
fixes for pythonnet#1568
diff --git a/src/runtime/converter.cs b/src/runtime/converter.cs
@@ -361,6 +361,9 @@ internal static bool ToManagedValue(IntPtr value, Type obType,
                     }
                     result = cb.type.Value;
                     return true;
+
+                default:
+                    throw new ArgumentException("We should never receive instances of other managed types");
             }
 
             if (value == Runtime.PyNone && !obType.IsValueType)
@@ -513,7 +516,7 @@ internal static bool ToManagedValue(IntPtr value, Type obType,
             {
                 if (setError)
                 {
-                    Exceptions.SetError(ex.InnerException);
+                    Exceptions.SetError(ex);
                 }
                 return null;
             }

Original file line number	Diff line number	Diff line change
`@@ -361,6 +361,9 @@ internal static bool ToManagedValue(IntPtr value, Type obType,`
`361`	`361`	`}`
`362`	`362`	`result = cb.type.Value;`
`363`	`363`	`return true;`
	`364`	`+`
	`365`	`+ default:`
	`366`	`+ throw new ArgumentException("We should never receive instances of other managed types");`
`364`	`367`	`}`
`365`	`368`
`366`	`369`	`if (value == Runtime.PyNone && !obType.IsValueType)`
`@@ -513,7 +516,7 @@ internal static bool ToManagedValue(IntPtr value, Type obType,`
`513`	`516`	`{`
`514`	`517`	`if (setError)`
`515`	`518`	`{`
`516`		`- Exceptions.SetError(ex.InnerException);`
	`519`	`+ Exceptions.SetError(ex);`
`517`	`520`	`}`
`518`	`521`	`return null;`
`519`	`522`	`}`