Bug : Added new field cast issue (float initialized with int value)

When adding a new float field with an integer initial value (no 'f' suffix), there is a cast exception in the NewFieldsRendererDefaultEditorPatch.RenderNewlyAddedFields method (newFieldType is System.Single but addedFieldValues[addedFieldValueKey] is System.Int32).

Start in NewFieldsRendererDefaultEditorPatch.RenderNewlyAddedFields and inspect how newFieldType is applied to addedFieldValues. Reproduce the issue by adding a float field with an integer initial value; done means the field is added without a cast exception and retains the expected value.

索引モデルが issue の本文から書いたものです。