Failing to read huge pack files

I'm using lib2gitsharp with big enterprise repositories which may have pack files with a size of 4 to 5 GB. When the size of the initially cloned pack file exceeds a certain value, reading operations will fail. I started with a 4.5 GB pack file repo, which I updated incrementally for some months. This poses no problems. When I freshly clone the same repo now, the initial pack file has (due to ongoing development) grown to 5.5 GB, which lib2gitsharp cannot handle any more.

Reproduction steps

Connect to a repository with pack files of size between 4.5 GB (working) and 5.56 GB (failing).
Iterate the commits of a branch or call a Diff.Compare on two Trees.

Expected behavior

Iterating the commit collection or comparing two trees works without exception.

Actual behavior

A LibGit2SharpException exception is thrown:

LibGit2Sharp.LibGit2SharpException
HResult=0x80131500
Message=invalid pack file - delta offset is zero
Source=LibGit2Sharp
StackTrace:
at LibGit2Sharp.Core.Ensure.HandleError(Int32 result) in C:\projects\libgit2sharp\LibGit2Sharp\Core\Ensure.cs:line 154

Version of LibGit2Sharp (release number or SHA1)

0.26.2

Operating system(s) tested; .NET runtime tested

Win 10, .NET Framework 4.8

Empieza reproduciendo el fallo con un repositorio que contenga un archivo pack de 5.56 GB y, después, inspecciona la ruta de excepción en LibGit2Sharp/Core/Ensure.cs:154. Compara la iteración de commits y el comportamiento de Diff.Compare con el caso funcional de 4.5 GB; se considera completado cuando ambas operaciones terminan sin la excepción de archivo pack no válido.