Row Groups are lost when Worksheet is attached or copied to a workbook

[shawnwildermuth]

Read and complete the full issue template

Do not randomly delete sections. They are here for a reason.

Do you want to request a feature or report a bug?

• Bug
• Feature
• Question

Did you test against the latest CI build?

• Yes
• No

Version of ClosedXML

e.g. 0.102.2 (tried the 104 preview and the latest CI build)

What is the current behavior?

When you create grouped rows, it works if you modify rows that are attached to a Workbook, but if you use Add or CopyTo, the groups disappear.

What is the expected behavior or new feature?

Should retain the groups.

Is this a regression from the previous version?

Not that I know of.

Reproducibility

RepoCopyToFailure.zip

Code to reproduce problem:
See Repo .zip file

• I attached a sample spreadsheet. (You can drag files on to this issue)

XslTestTest.xlsx