From 1e6f23ce922b0310bda5a4a9cf9ebd4ae6881f0c Mon Sep 17 00:00:00 2001
From: Chris Rebert <code@chrisrebert.com>
Date: Sun, 15 Nov 2015 14:09:12 -0800
Subject: [PATCH] Fix #17001 in v4

Refs #18253
[skip sauce]
---
 scss/_input-group.scss | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/scss/_input-group.scss b/scss/_input-group.scss
index 3b4ef632cb..ad09d28a89 100644
--- a/scss/_input-group.scss
+++ b/scss/_input-group.scss
@@ -19,6 +19,10 @@
     // proper border colors.
     position: relative;
     z-index: 2;
+    // Bring the "active" form control to the front
+    @include hover-focus-active {
+      z-index: 3;
+    }
     @if $enable-flex {
       flex: 1;
     } @else {
@@ -160,7 +164,7 @@
     }
     // Bring the "active" button to the front
     @include hover-focus-active {
-      z-index: 2;
+      z-index: 3;
     }
   }
 
@@ -176,6 +180,10 @@
     > .btn-group {
       z-index: 2;
       margin-left: -1px;
+      // Because specificity
+      @include hover-focus-active {
+        z-index: 3;
+      }
     }
   }
 }