Fix(forms): No border for focused <select> in Forms > Custom styles (#…

…715)

Signed-off-by: Isabelle Chanclou <isabelle.chanclou@orange.com>

scss/_variables.scss

@@ -1000,7 +1000,7 @@ $input-border-radius:                   $border-radius !default;
 $input-border-radius-lg:                $border-radius-lg !default;
 
 $input-focus-bg:                        $input-bg !default;
-$input-focus-border-color:              currentColor !default;
+$input-focus-border-color:              $input-color !default;
 $input-focus-color:                     $input-color !default;
 $input-focus-width:                     $input-btn-focus-width !default;
 $input-focus-box-shadow:                $input-btn-focus-box-shadow !default;