Fixed edge case bug, where HTTP body fragment could get written to stream without acknowledging it, at the start of the response, which could result in the bodystream having a single duplicate fragment.

microscript/ILibDuktape_HttpStream.c

@@ -3075,6 +3075,7 @@ void ILibDuktape_HttpStream_OnReceive(ILibWebClient_StateObject WebStateObject,
 				if (bodyBuffer != NULL && endPointer > 0)
 				{
 					ILibDuktape_readableStream_WriteData(data->bodyStream, bodyBuffer + *beginPointer, endPointer);
+					*beginPointer += endPointer;
 				}
 				break;
 		}