Safari icon fix, follow up to 5cc0369

Safari icon fix, follow up to 5cc0369

diff --git a/app/assets/stylesheets/common/select-kit/dropdown-select-box.scss b/app/assets/stylesheets/common/select-kit/dropdown-select-box.scss
index 23a9068..edbbd85 100644
--- a/app/assets/stylesheets/common/select-kit/dropdown-select-box.scss
+++ b/app/assets/stylesheets/common/select-kit/dropdown-select-box.scss
@@ -27,6 +27,7 @@
 
         .d-icon {
           flex: 0 0 100%;
+          overflow: hidden; // Safari
           font-size: $font-up-2;
           align-self: center;
           margin-right: 0;

GitHub sha: c0289362