Add an ability to work with Fork + PR model

[Антон Кононов]

We are heavy users of forking model on Bitbucket so our team members have their own forks always. And PR’s are created towards main repo. Currently extension is throwing error when try to open changes:

We couldn't find commit 6355cc2b91d58034a0027f9c8fc94f7e8b7c38d5 locally. You may want to sync the branch with remote. Sometimes commits can disappear after a force-push

Can we please have this work without explicit add remote and fetch?

If necessary extension could ask about that and add remote itself.

[Антон Кононов]

Also when i click “Checkout source branch“ it does not work and in Git output i find this

git remote add ~someuser/reponame https://bitbucket.server/users/someuser/repos/reponame/browse

fatal: '~someuser/reponame' is not a valid remote name

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[Pramod Busam]

Linked to VSCODE-824

[Nick Rundquist]

We've just released version 2.3.0 which includes support for this.

[Alastair Wilkes]

Removing component: triaged (automated comment)