Worksheet copy preserves comment object but loses comment text #2524

using OfficeOpenXml;

const string outputFileName = "worksheet-comment-copy.xlsx";
string outputPath = Path.Combine(AppContext.BaseDirectory, outputFileName);

ExcelPackage.License.SetNonCommercialPersonal("EPPlus note copy POC");

using (ExcelPackage package = new()) {
    ExcelWorksheet source = package.Workbook.Worksheets.Add("Source");
    source.Cells["A1"].Value = "Question";
    source.Cells["A2"].Value = "A table data cell with a note";
    source.Tables.Add(source.Cells["A1:A2"], "Data0000");
    source.Cells["A2"].AddComment("This note must survive the worksheet copy.", "POC");

    ExcelWorksheet copied = package.Workbook.Worksheets.Copy("Source", "Copy");
    copied.Tables[0].Name = "Data2025";

    package.SaveAs(new FileInfo(outputPath));
}

using ExcelPackage reopenedPackage = new(new FileInfo(outputPath));
ExcelComment? sourceComment = reopenedPackage.Workbook.Worksheets["Source"].Cells["A2"].Comment;
ExcelComment? copiedComment = reopenedPackage.Workbook.Worksheets["Copy"].Cells["A2"].Comment;
const string expectedCommentText = "This note must survive the worksheet copy.";
bool sourceHasExpectedText = String.Equals(sourceComment?.Text, expectedCommentText, StringComparison.Ordinal);
bool copiedHasExpectedText = String.Equals(copiedComment?.Text, expectedCommentText, StringComparison.Ordinal);

Console.WriteLine($"Output: {outputPath}");
Console.WriteLine($"Source A2 comment object after save/reopen: {sourceComment is not null}");
Console.WriteLine($"Source A2 note text after save/reopen:     {Describe(sourceComment?.Text)}");
Console.WriteLine($"Copy A2 comment object after save/reopen:   {copiedComment is not null}");
Console.WriteLine($"Copy A2 note text after save/reopen:         {Describe(copiedComment?.Text)}");

return sourceHasExpectedText && copiedHasExpectedText ? 0 : 1;

static string Describe(string? text) => text switch {
    null => "<null>",
    "" => "<empty>",
    _ => text
};