Interop with Visual Studio 2019 stash support

[tsahi]

As noted in issue #26, VS2019 has built in support for stashes. But consider the following case:

1. you add a stash in VS2017 using GitStashExtension
2. you close VS2017 and open the same solution in VS2019
   result: you can't see the stashes in VS2019 stash list.

and vise-versa:

1. create a stash in VS2019
2. open the same solution in VS2017
   result: not only you don't see the stashes in GitStashExtension, but it looks like the names of stashes you created in VS2017 using GitStashExtensions are partially overwritten with commit numbers.

Perhaps Visuas Studio is doing something funky with stashes, but it would be nice if this could work both ways.

[voshchinskiyvitya]

What version of Visual Studio are you using? I've double-checked with the last 2017 and 2019 versions and everything worked fine.
If the issue exists for the latest versions of Visual Studio, please provide me with more information.

[tsahi]

I have a project I started on VS2017, and then switched to VS2019. On VS2019 I can't see the stashes I created with GitStashExtension on VS2017.

Is this screen shot from the same project?

[tsahi]

OK, I think I'm getting what's going on here. When I do git stash list I get the full stash comment, so it appears like GitStashExtension doesn't show the "WIP on " part, and VS2019 does. So initially I didn't notice that this is in fact the same stash.