Merge branch 'cherry-pick-e737d99e' into 'develop'

修复流程data数据中的附件信息在流转后消失的错误.

See merge request o2oa/o2oa!2599

o2server/x_processplatform_core_entity/src/main/java/com/x/processplatform/core/entity/content/Data.java

@@ -74,7 +74,7 @@ public class Data extends ListOrderedMap<String, Object> {
 	@JsonIgnore
 	public Data setAttachmentList(List<Attachment> attachmentList) {
 		List<DataAttachment> list = new ArrayList<>();
-		if (ListTools.isEmpty(attachmentList)) {
+		if (!ListTools.isEmpty(attachmentList)) {
 			DataAttachment.copier.copy(attachmentList, list);
 		}
 		this.put(ATTACHMENTLIST_PROPERTY, list);