New Branch buttons fails with long issue title
Summary
Trying to create a new branch for an issue with long title leads to error 500.
Steps to reproduce
- create issue with long title
- click "New Branch" button
Expected behavior
branch is created
Actual behavior
error 500
Relevant logs
Happened on gitlab.com with this issue: winniehell/reproduction-area#22
Rugged::ReferenceError - Cannot locate local branch '4-adolph-blaine-charles-david-earl-frederick-gerald-hubert-irvin-john-kenneth-lloyd-martin-nero-oliver-paul-quincy-randolph-sherman-thomas-uncas-victor-william-xerxes-yancy-zeus-wolfe-schlegel-stein-hausen-berger-dorff-welche-vor-altern-waren-gewissen-haft':
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app/models/repository.rb:156:in `find_branch'
app/services/create_branch_service.rb:12:in `execute'
app/controllers/projects/branches_controller.rb:36:in `create'
actionpack (4.2.7.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
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actionpack (4.2.7.1) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
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lib/gitlab/middleware/go.rb:16:in `call'
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