vim should not assume all files will always be tab-indented #36

Currently, when editing a file which uses spaces for indentation (at any width equal to or greater than 4 spaces), vim's current configuration will convert all groups of 4 leading spaces to tabs. I'd like to not have to fight my configuration to edit files from projects I work on which aren't indenting with tabs like I'd do in my own project. (but would still like tabs to be the default for new files, or files without any type of indentation present)