stylelint: Column start (x) greater than line length (y) error in Atom

Looks like the coordinates for errors are not always correct (value for col is greater than expected). Here’s an example (client/main.less):

.class {
  .mixin();
  .mixin2;
}

$ stylelint --syntax less client/main.less

client/main.less
 2:13  ✖  Unexpected extra semicolon   no-extra-semicolons
 3:12  ✖  Unexpected extra semicolon   no-extra-semicolons

Instead of 2:13 and 3:12, I was expecting to see 2:12 and 3:11 (or even 2:11 and 3:12?). Because there are no characters at 2:13 and 3:12, Atom fires an exception:

Error: Column start (11) greater than line length (10)
Error: Column start (11) greater than line length (10)
    at Object.rangeFromLineNumber (/home/[username]/.atom/packages/linter-stylelint/node_modules/atom-linter/lib/index.js:181:11)
    at /home/[username]/.atom/packages/editorconfig/node_modules/lazy-req/index.js:20:26
    at createRange (/home/[username]/.atom/packages/linter-stylelint/lib/index.js:65:10)
    at /home/[username]/.atom/packages/linter-stylelint/lib/index.js:110:14
    at Array.map (native)
    at stylelint.lint.then.error.type (/home/[username]/.atom/packages/linter-stylelint/lib/index.js:104:38)

.stylelintrc:

{
  "extends": "stylelint-config-standard",
  "rules": {
  }
}

Stylelint v6.5.1