Git stash pop behaviour with

Reproduction steps

• In branch A with master as remove we have a new file untracked.
• In master we have added the same file already and it's part of commit a123

we are updating branch A to the commit a123 so we are doing:

var stash = repository.Stashes.Add(signature, StashModifiers.IncludeUntracked);
repository.Merge('a123', signature);

if (stash != null)
{
	repository.Stashes.Pop(0);
}

if(repository.Index.Conflicts.Any()){
      showUserAllTheConflictsAndGiveOptionsToFixThem
}

Expected behavior

When doing the Pop the change should get marked as having a conflict and being modified

Actual behavior

There won't be any conflicts even though the file is marked as modified and has been modified with the conflict markers

Version of LibGit2Sharp (release number or SHA1)

0.27.0-preview-0034

Operating system(s) tested; .NET runtime tested

Windows Server 2012; .NET 4.7.2

Reproduce the case using repository.Stashes.Add with IncludeUntracked, repository.Merge, repository.Stashes.Pop(0), and repository.Index.Conflicts on LibGit2Sharp 0.27.0-preview-0034. First inspect how stash pop reports conflicts when an untracked file collides with a tracked file, then verify that the conflict is exposed through the index while the working file remains modified with conflict markers.