Fix automatically hiding the placeholder

The placeholder will not only be automatically hidden if the
results adapter was not already overridden. This will allow users
to override the results adapter to now hide the placeholder, if
they do not want that functionality.

dist/js/select2.amd.full.js

@@ -1496,6 +1496,13 @@ define('select2/defaults',[
 
     if (options.resultsAdapter == null) {
       options.resultsAdapter = ResultsList;
+
+      if (options.placeholder != null) {
+        options.resultsAdapter = Utils.Decorate(
+          options.resultsAdapter,
+          HidePlaceholder
+        );
+      }
     }
 
     if (options.dropdownAdapter == null) {
@@ -1517,11 +1524,6 @@ define('select2/defaults',[
           options.selectionAdapter,
           Placeholder
         );
-
-        options.resultsAdapter = Utils.Decorate(
-          options.resultsAdapter,
-          HidePlaceholder
-        );
       }
     }
 

dist/js/select2.amd.js

@@ -1496,6 +1496,13 @@ define('select2/defaults',[
 
     if (options.resultsAdapter == null) {
       options.resultsAdapter = ResultsList;
+
+      if (options.placeholder != null) {
+        options.resultsAdapter = Utils.Decorate(
+          options.resultsAdapter,
+          HidePlaceholder
+        );
+      }
     }
 
     if (options.dropdownAdapter == null) {
@@ -1517,11 +1524,6 @@ define('select2/defaults',[
           options.selectionAdapter,
           Placeholder
         );
-
-        options.resultsAdapter = Utils.Decorate(
-          options.resultsAdapter,
-          HidePlaceholder
-        );
       }
     }
 

dist/js/select2.full.js

@@ -11031,6 +11031,13 @@ define('select2/defaults',[
 
     if (options.resultsAdapter == null) {
       options.resultsAdapter = ResultsList;
+
+      if (options.placeholder != null) {
+        options.resultsAdapter = Utils.Decorate(
+          options.resultsAdapter,
+          HidePlaceholder
+        );
+      }
     }
 
     if (options.dropdownAdapter == null) {
@@ -11052,11 +11059,6 @@ define('select2/defaults',[
           options.selectionAdapter,
           Placeholder
         );
-
-        options.resultsAdapter = Utils.Decorate(
-          options.resultsAdapter,
-          HidePlaceholder
-        );
       }
     }
 

dist/js/select2.js

@@ -1924,6 +1924,13 @@ define('select2/defaults',[
 
     if (options.resultsAdapter == null) {
       options.resultsAdapter = ResultsList;
+
+      if (options.placeholder != null) {
+        options.resultsAdapter = Utils.Decorate(
+          options.resultsAdapter,
+          HidePlaceholder
+        );
+      }
     }
 
     if (options.dropdownAdapter == null) {
@@ -1945,11 +1952,6 @@ define('select2/defaults',[
           options.selectionAdapter,
           Placeholder
         );
-
-        options.resultsAdapter = Utils.Decorate(
-          options.resultsAdapter,
-          HidePlaceholder
-        );
       }
     }
 

src/js/select2/defaults.js

@@ -48,6 +48,13 @@ define([
 
     if (options.resultsAdapter == null) {
       options.resultsAdapter = ResultsList;
+
+      if (options.placeholder != null) {
+        options.resultsAdapter = Utils.Decorate(
+          options.resultsAdapter,
+          HidePlaceholder
+        );
+      }
     }
 
     if (options.dropdownAdapter == null) {
@@ -69,11 +76,6 @@ define([
           options.selectionAdapter,
           Placeholder
         );
-
-        options.resultsAdapter = Utils.Decorate(
-          options.resultsAdapter,
-          HidePlaceholder
-        );
       }
     }