Mono.Cecil TypeReference modifies TypeDefinition

MemberReference member = instruction.Operand; 
if (Mappings.GetType(member.DeclaringType.Name, DefaultNamespace) is TypeDefinitionEntry typeDefinition)
{
    WriteIfVerbose($"Remapping reference to {member.Name}'s type {member.DeclaringType.Name} -> {typeDefinition[TargetNamespace]}");
    member.DeclaringType.Name = typeDefinition.Names[TargetNamespace];
}