If a choice is inside a hiddenGroupRef it we will not be able to determine which branch to unparse. This is because the branch to unparse is determined by which elements appear in the infoset, but no elements will appear in the infoset. How to we resolve this issue?

Issues that cause this failure during roundtripping include:

• edu.illinois.ncsa.daffodil.section14.sequence_groups.TestSequenceGroups