Failure in Bitbucket Pull Request import
After robustness pass on Issues, we still have something for Pull Requests:
Bitbucket importer for tortoisehg/thg (project id=315) PR 45 Import failed error no implicit conversion of nil into String, trace: /
usr/x86_64-pc-linux-gnu/lib/ruby/2.6/open3.rb:213:in `spawn'
/usr/x86_64-pc-linux-gnu/lib/ruby/2.6/open3.rb:213:in `popen_run'
/usr/x86_64-pc-linux-gnu/lib/ruby/2.6/open3.rb:101:in `popen3'
/home/hg/heptapod/lib/gitlab/popen.rb:38:in `popen_with_detail'
/home/hg/heptapod/lib/gitlab/popen.rb:14:in `popen'
/home/hg/heptapod/lib/gitlab/mercurial/hg_git_repository.rb:782:in `pull_force_topic'
/home/hg/heptapod/lib/gitlab/bitbucket_import/importer.rb:458:in `import_pull_request'
at this point it's possible that the end result would be the same, ie, the PR cannot be imported anyway.