Error 500 accessing branches via API
https://sentry.gitlap.com/gitlab/gitlabcom/issues/110249/
TypeError: no implicit conversion of nil into String
lib/gitlab/git/popen.rb:21:in `popen'
Open3.popen3(vars, *cmd, options) do |stdin, stdout, stderr, wait_thr|
lib/gitlab/git/repository.rb:1111:in `block in run_git'
popen([Gitlab.config.git.bin_path, *args], path, env)
lib/gitlab/git/storage/circuit_breaker.rb:57:in `perform'
return yield unless enabled?
lib/gitlab/git/repository.rb:1110:in `run_git'
circuit_breaker.perform do
lib/gitlab/git/repository.rb:1225:in `git_merged_branch_names'
lines = run_git(['branch', '--merged', root_ref] + branch_names)
...
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TypeError: no implicit conversion of nil into String