refactor(stack): remove deprecated head field and related methods

[krlvi]

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This is part 1 of 2 in a stack made with GitButler:

•  2  refactor(branch): remove unused upstream_head field from stack types #11831
•  1  refactor(stack): remove deprecated head field and related methods #11830 👈

[vercel]

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
gitbutler-web	Ignored	Preview	Jan 15, 2026 2:45am

[Copilot]

Pull request overview

This pull request removes the deprecated head field from the Stack struct and related methods across the codebase. The field has been superseded by the heads list which provides a more complete representation of stack state.

Changes:

• Removed the head field from the active Stack struct definition while maintaining it in legacy serialization types for backward compatibility
• Removed the set_head() method which was no longer used
• Updated Stack::new() and Stack::create() to remove the head parameter
• Refactored make_new_empty_reference() to compute head values inline using head_oid()

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
crates/gitbutler-stack/src/stack.rs	Removed deprecated head field, set_head() method, and refactored logic to use head_oid() instead
crates/but-meta/src/virtual_branches_legacy_types.rs	Moved head field to deprecated section with proper serialization defaults for backward compatibility
crates/gitbutler-branch-actions/src/branch_manager/branch_creation.rs	Updated Stack::create() calls to remove head parameter and cleaned up unused variable
crates/gitbutler-branch-actions/src/base.rs	Updated Stack::create() call to remove head parameter

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.