[content-service] Fix checkout local HEAD branch

[aledbf]

How to test

• https://aledbf-head.preview.gitpod-dev.com/#https://github.com/gitpod-io/dazzle
• https://aledbf-head.preview.gitpod-dev.com/#https://github.com/gitpod-io/dazzle/commit/ddbf82c1a4dc95bda26c9f299d8e3b8f84eb659d
• https://aledbf-head.preview.gitpod-dev.com/#prebuild/https://github.com/gitpod-io/dazzle
• https://aledbf-head.preview.gitpod-dev.com/#https://github.com/NixOS/nixpkgs
• https://aledbf-head.preview.gitpod-dev.com/#prebuild/https://github.com/NixOS/nixpkgs
• https://aledbf-head.preview.gitpod-dev.com/#https://github.com/gitpod-io/spring-petclinic/tree/ak/vmoptions_test
• https://aledbf-head.preview.gitpod-dev.com/#prebuild/https://github.com/gitpod-io/empty
• https://aledbf-head.preview.gitpod-dev.com/#github.com/gitpod-io/gitpod-test-repo/issues/88

Related Issue(s)

Fixes #13284

Release Notes

NONE

Werft options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide

[werft-gitpod-dev-com]

started the job as gitpod-build-aledbf-head.4 because the annotations in the pull request description changed
(with .werft/ from main)

[aledbf]

/werft run

👍 started the job as gitpod-build-aledbf-head.5
(with .werft/ from main)

[utam0k]

/werft run with-integration-tests=workspace

👍 started the job as gitpod-build-aledbf-head.6
(with .werft/ from main)

We should pass this test case

gitpod/test/tests/workspace/contexts_test.go

Lines 44 to 49 in 1537260

	{
	// Branch name decisions are not tested in the workspace as it is the server side logic
	Name: "open issue",
	ContextURL: "github.com/gitpod-io/gitpod-test-repo/issues/88",
	WorkspaceRoot: "/workspace/gitpod-test-repo",
	},

[aledbf]

/werft run with-integration-tests=workspace

👍 started the job as gitpod-build-aledbf-head.7
(with .werft/ from main)

[atduarte]

@aledbf added a release note as this is very relevant to the end user

[utam0k]

@aledbf added a release note as this is very relevant to the end user

@atduarte
This is a fix for a problem that occurred in the refactoring, and from the user's point of view, there should be no change because we didn't release them. WDYT?

[atduarte]

@utam0k ah, got it! Thanks for sharing. Will revert back. Sorry @aledbf!