emsmdb: use attachment_object::set_properties when props are set via …

…fastupctx

When an attachment is copied from and to the same message using
MFCMAPI, it issues MAPI calls like so:

	// CAttachmentsDlg::HandlePaste()
	srcmsg->OpenAttach(..., &srcatt);
	dstmsg->CreateAttach(..., &dstatt);
	srcatt->CopyTo(..., dstatt, ...);
	dstatt->SaveChanges(...);
	dstmsg->SaveChanges(...);

and EMSMDB.DLL's IAttach::CopyTo issues this set of ROPs:

	ropOpenAttachment
	ropCreateAttachment
	ropFastTransferDestinationConfigure
	ropFastTransferSourceCopyTo
	ropFastTransferSourceGetBuffer
	ropFastTransferDestinationPutBuffer
	ropSaveChangesAttachment
	ropSaveChangesMessage

rop_fasttransferdestputbuffer fails to mark the attachment as
modified (b_touched), and the attachment is not saved.

Fixes: gromox-0~666

exch/emsmdb/fastupctx_object.cpp

@@ -873,11 +873,14 @@ static gxerr_t fastupctx_object_record_propval(fastupctx_object *pctx,
 			       static_cast<message_object *>(pctx->pobject)->get_instance_id(),
 					ppropval, &b_result) == TRUE ?
 					GXERR_SUCCESS : GXERR_CALL_FAILED;
-		case ROOT_ELEMENT_ATTACHMENTCONTENT:
-			return exmdb_client_set_instance_property(pctx->pstream->plogon->get_dir(),
-			       static_cast<attachment_object *>(pctx->pobject)->get_instance_id(),
-					ppropval, &b_result) == TRUE ?
-					GXERR_SUCCESS : GXERR_CALL_FAILED;
+		case ROOT_ELEMENT_ATTACHMENTCONTENT: {
+			auto atx = static_cast<attachment_object *>(pctx->pobject);
+			TPROPVAL_ARRAY av;
+			av.count = 1;
+			av.ppropval = deconst(ppropval);
+			PROBLEM_ARRAY pa;
+			return atx->set_properties(&av, &pa) == TRUE ? GXERR_SUCCESS : GXERR_CALL_FAILED;
+		}
 		case ROOT_ELEMENT_MESSAGELIST:
 		case ROOT_ELEMENT_TOPFOLDER:
 			return GXERR_CALL_FAILED;