Saving reverts EditorConfig: Fix File

[lolJS]

Saving after fixing a file reverts it back to spaces...

Involved .editorconfig-files

root = true

[*]
charset = utf-8
indent_style = tab
indent_size = 4
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true

[*.md]
insert_final_newline = false
trim_trailing_whitespace = false

Directory structure

/src
.editorconfig

Installed packages

Built-in Atom Packages (89)
├── atom-dark-syntax@0.27.0
├── atom-dark-ui@0.52.0
├── atom-light-syntax@0.28.0
├── atom-light-ui@0.45.0
├── base16-tomorrow-dark-theme@1.3.0
├── base16-tomorrow-light-theme@1.3.0
├── one-dark-ui@1.6.2
├── one-light-ui@1.6.2
├── one-dark-syntax@1.5.0
├── one-light-syntax@1.5.0
├── solarized-dark-syntax@1.0.5
├── solarized-light-syntax@1.0.5
├── about@1.7.0
├── archive-view@0.62.0
├── autocomplete-atom-api@0.10.0
├── autocomplete-css@0.13.1
├── autocomplete-html@0.7.2
├── autocomplete-plus@2.31.4
├── autocomplete-snippets@1.11.0
├── autoflow@0.27.0
├── autosave@0.23.1
├── background-tips@0.26.1
├── bookmarks@0.42.0
├── bracket-matcher@0.82.2
├── command-palette@0.39.0
├── deprecation-cop@0.54.1
├── dev-live-reload@0.47.0
├── encoding-selector@0.22.0
├── exception-reporting@0.40.0
├── find-and-replace@0.202.2
├── fuzzy-finder@1.4.0
├── git-diff@1.1.0
├── go-to-line@0.31.0
├── grammar-selector@0.48.2
├── image-view@0.60.0
├── incompatible-packages@0.26.1
├── keybinding-resolver@0.35.0
├── line-ending-selector@0.5.0
├── link@0.31.2
├── markdown-preview@0.158.8
├── metrics@1.1.2
├── notifications@0.65.1
├── open-on-github@1.2.1
├── package-generator@1.0.1
├── settings-view@0.243.1
├── snippets@1.0.4
├── spell-check@0.68.4
├── status-bar@1.4.1
├── styleguide@0.47.2
├── symbols-view@0.113.1
├── tabs@0.103.0
├── timecop@0.33.2
├── tree-view@0.210.0
├── update-package-dependencies@0.10.0
├── welcome@0.35.1
├── whitespace@0.35.0
├── wrap-guide@0.38.2
├── language-c@0.54.0
├── language-clojure@0.22.1
├── language-coffee-script@0.48.0
├── language-csharp@0.13.0
├── language-css@0.40.1
├── language-gfm@0.88.0
├── language-git@0.15.0
├── language-go@0.43.0
├── language-html@0.47.1
├── language-hyperlink@0.16.1
├── language-java@0.24.0
├── language-javascript@0.122.0
├── language-json@0.18.3
├── language-less@0.29.6
├── language-make@0.22.2
├── language-mustache@0.13.0
├── language-objective-c@0.15.1
├── language-perl@0.37.0
├── language-php@0.37.3
├── language-property-list@0.8.0
├── language-python@0.45.1
├── language-ruby@0.70.2
├── language-ruby-on-rails@0.25.1
├── language-sass@0.57.0
├── language-shellscript@0.23.0
├── language-source@0.9.0
├── language-sql@0.25.0
├── language-text@0.7.1
├── language-todo@0.29.1
├── language-toml@0.18.1
├── language-xml@0.34.12
└── language-yaml@0.27.1

Community Packages (13) /Users/Jon/.atom/packages
├── editorconfig@2.0.5
├── emmet@2.4.3
├── file-type-icons@1.3.3
├── git-plus@5.27.0
├── highlight-selected@0.11.2
├── linter@1.11.18
├── linter-eslint@8.0.0
├── merge-conflicts@1.4.4
├── minimap@4.25.7
├── open-recent@5.0.0
├── pigments@0.37.0
└── react@0.16.1

[lolJS]

Turns out this was caused by tabs-to-spacesplugin that I disabled right after opening this issue. Fixed the issue. Closing.

[florianb]

@lolJS - thank you very much for reporting this. I guess we will blacklist that package after a crossread! 💝