JSOM Upload File to Doc Library with metadata but avoiding versioning duplicates

Hi, i'm uploading a file to a doc library with javscript jsom in Sharepoint 2013. This doc library has versioning enabled. The problem is that the upload creates two history records in the doc's versioning. I suspect that one is caused for uploading the doc and the other one for editing it's properties. I want to avoid that, my code is like this:

			   var clientContext;
			    var oWebsite;
			    var oList;
			    var fileCreateInfo;
			    var fileContent;
			    clientContext = new SP.ClientContext.get_current();
			    oWebsite = clientContext.get_web();
			    oList = oWebsite.get_lists().getByTitle("ALibrary");
			    fileCreateInfo = new SP.FileCreationInformation();
			    fileCreateInfo.set_url("asd" + idInterno +".pdf");
			    fileCreateInfo.set_content(new SP.Base64EncodedByteArray());
			    fileCreateInfo.set_overwrite(true);
			    var byteArr = new Uint8Array(reader.result);
			    for (var i = 0; i < byteArr.length; i++) {
			        fileCreateInfo.get_content().append(byteArr[i]);
			    }
			    this.newFile = oList.get_rootFolder().get_files().add(fileCreateInfo);
			    this.newFile.get_listItemAllFields().set_item("AProperty1",myproperty1);
			    this.newFile.get_listItemAllFields().set_item("AProperty2",myproperty2);
		            this.newFile.get_listItemAllFields().update();
			    clientContext.load(this.newFile);
			    clientContext.executeQueryAsync(
			        Function.createDelegate(this, successOtroHandler),
			        Function.createDelegate(this, errorOtroHandler)
			    );