Describe the bug
I'm working on a repo with multiple remotes (origin and fork) and have a branch locally with different name which pushes to main branch on the fork

To Reproduce

1. set upstream of a branch to a differently named one:
   .git/config

[branch "lints"]
	remote = workspace-lints
	merge = refs/heads/main

2. set default for push to upstream (without it the cli asks you to specify to which branch)
   in .git/config

[push]
    default = upstream

3. prepare a commit and push with gitui
4. gitui creates a branch with the name of the local branch and pushes to it

Expected behavior
when executing git push --verbose on such branch

Pushing to gitlab.torproject.org:matt022/workspace-lints
To gitlab.torproject.org:matt022/workspace-lints
 = [up to date]          lints -> main
updating local tracking ref 'refs/remotes/workspace-lints/main'
Everything up-to-date

Screenshots
N/A

Context (please complete the following information):
Rust: cargo 1.84.0 (66221abde 2024-11-19) (stable)
gitui: 0.27.0
OS: NixOS 25.05 (Warbler) x86_64
Host: Windows Subsystem for Linux - NixOS (2.4.11)
Kernel: Linux 5.15.167.4-microsoft-standard-WSL2
Shell: bash 5.2.37

Additional context
As noted in the logs this is a gitlab instance if that changes things