Hidden RepeatContent inside TableContent generates malformed document

[zii-dmg]

Word error message when opening (in russian):

Template: HiddenRepeatReproTemplate.docx

Repro:

using System;
using System.IO;
using TemplateEngine.Docx;

namespace HiddenRepeatRepro
{
	static class Program
	{
		static void Main(string[] args)
		{
			string templateFile = "HiddenRepeatReproTemplate.docx";
			string outputFile = "HiddenRepeatRepro.docx";

			File.Delete(outputFile);
			File.Copy(templateFile, outputFile);

			var repeat = new RepeatContent("repeat1")
				.AddItem(new FieldContent("val", "123"))
				.AddItem(new FieldContent("val", "456"));

			repeat.Hide(); // breaks document

			var table = new TableContent("table1")
				.AddRow(repeat);

			var content = new Content(table);

			using (var template = new TemplateProcessor(outputFile).SetRemoveContentControls(true))
			{
				template.FillContent(content);
				template.SaveChanges();
			}
		}
	}
}