_forms.scss in bootstrap-5.0.0

- old
+ new

@@ -86,13 +86,16 @@
   .form-select {
     @include form-validation-state-selector($state) {
       border-color: $color;
 
       @if $enable-validation-icons {
-        padding-right: $form-select-feedback-icon-padding-end;
-        background-image: escape-svg($form-select-indicator), escape-svg($icon);
-        background-position: $form-select-bg-position, $form-select-feedback-icon-position;
-        background-size: $form-select-bg-size, $form-select-feedback-icon-size;
+        &:not([multiple]):not([size]),
+        &:not([multiple])[size="1"] {
+          padding-right: $form-select-feedback-icon-padding-end;
+          background-image: escape-svg($form-select-indicator), escape-svg($icon);
+          background-position: $form-select-bg-position, $form-select-feedback-icon-position;
+          background-size: $form-select-bg-size, $form-select-feedback-icon-size;
+        }
       }
 
       &:focus {
         border-color: $color;
         box-shadow: $focus-box-shadow;