Fix indentation bug in multi-line CSS selectors

* lisp/textmodes/css-mode.el (css--colon-inside-selector-p): Fix
indentation of multi-line CSS selectors that include both a
pseudo-class and parenthesis.

* test/manual/indent/css-mode.css: Add test for the above change.

1 files changed, 10 insertions, 0 deletions

diff --git a/test/manual/indent/css-mode.css b/test/manual/indent/css-mode.css
index bf612b53a14..640418b022d 100644
--- a/test/manual/indent/css-mode.css
+++ b/test/manual/indent/css-mode.css
@@ -66,6 +66,16 @@ div::before {
     );
 }
 
+/* Multi-line selector including both a pseudo-class and
+   parenthesis. */
+.form-group:not(.required) label,
+.birth-date .row > * {
+    &::after {
+        display: inline;
+        font-weight: normal;
+    }
+}
+
 @font-face {
     src: url("Sans-Regular.eot") format("eot"),
          url("Sans-Regular.woff") format("woff"),