Fix account deletion dead ends and misleading login errors

[nygrenh]

No description provided.

[houndci-bot]

Some files could not be reviewed due to errors:

Unable to find gem rubocop-rails_config; is the gem installed? Gem::MissingSp...

Unable to find gem rubocop-rails_config; is the gem installed? Gem::MissingSpecError
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:237:in `rescue in gem_config_path'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:227:in `gem_config_path'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:55:in `block (2 levels) in resolve_inheritance_from_gems'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:53:in `reverse_each'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:53:in `block in resolve_inheritance_from_gems'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:46:in `each_pair'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader_resolver.rb:46:in `resolve_inheritance_from_gems'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader.rb:49:in `load_file'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_loader.rb:104:in `configuration_from_file'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_store.rb:58:in `for_dir'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/config_store.rb:37:in `for_pwd'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/cli.rb:128:in `apply_default_formatter'
/home/linters/.bundle/gems/rubocop-1.5.2/lib/rubocop/cli.rb:40:in `run'
/home/linters/.bundle/gems/rubocop-1.5.2/exe/rubocop:13:in `block in '
/usr/local/lib/ruby/2.6.0/benchmark.rb:308:in `realtime'
/home/linters/.bundle/gems/rubocop-1.5.2/exe/rubocop:12:in `'
/home/linters/.bundle/bin/rubocop:23:in `load'
/home/linters/.bundle/bin/rubocop:23:in `'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:74:in `load'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:74:in `kernel_load'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:28:in `run'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:463:in `exec'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:27:in `dispatch'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:18:in `start'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-1.17.2/exe/bundle:30:in `block in '
/usr/local/lib/ruby/2.6.0/bundler/friendly_errors.rb:124:in `with_friendly_errors'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-1.17.2/exe/bundle:22:in `'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `'