libgit2sharp-ssh :user cancelled certificate check exception

Reproduction steps

win7/win 10 using the libgit2sharp-ssh 1.0.2
clone repository using app written in visual studio 2015 update 3
throw exception : "user cancelled certificate check"
(when cloning using gitBash not with code works fine )

Expected behavior

clone via https under corporate proxy

Actual behavior

my app was using libgit2sharp version 0.22.0 and everything was working fine, also under corporate proxy .
after updating the dll to libgit2sharp-ssh i get the exception : "user cancelled certificate check" when using https/http (ssh option works ok)

Version of LibGit2Sharp (release number or SHA1)

ibgit2sharp-ssh 1.0.2

Operating system(s) tested; .NET runtime tested

C# .net 4.5

is libgit2sharp-ssh not support proxy ?
if not, how can i implement connection to git with https/http and ssh with corporate proxy .

Start by reproducing the HTTPS/HTTP clone with LibGit2Sharp-SSH 1.0.2 on .NET 4.5 behind a corporate proxy, comparing it with version 0.22.0 and the working SSH path. Investigate the certificate-check exception and proxy behavior; done means establishing whether proxy support is expected and providing a verified fix or documented limitation.