Issue #3271639 by pivica: Header top link if rule needs a better condition

themes/bs_bootstrap/sass/layout/partials/_header.scss

@@ -58,7 +58,7 @@
     }
 
     // General link rules.
-    @if $header-top-link-color != $header-link-color {
+    @if $header-top-link-color != $header-link-color or $header-top-link-hover-color != $header-link-hover-color {
       a:not([class]), a.ext {
         @include style-link($header-top-link-color, $header-top-link-hover-color);
       }