fixes issue where closing the 'MORE' action scrolls to the top of page.

fixes #3076

CHANGELOG.txt

@@ -20,6 +20,7 @@ Changelog
  * Fix: Header for search results on the redirects index page now shows the correct count when the listing is paginated (Nick Smith)
  * Fix: `set_url_paths` management command is now compatible with Django 1.10 (Benjamin Bach)
  * Fix: Form builder email notifications now output multiple values correctly (Sævar Öfjörð Magnússon)
+ * Fix: Closing 'more' dropdown on explorer no longer jumps to the top of the page (Ducky)
 
 
 1.7 (20.10.2016)

CONTRIBUTORS.rst

@@ -175,6 +175,7 @@ Contributors
 * Henk-Jan van Hasselaar
 * alexfromvl
 * Jaap Roes
+* Ducky
 
 Translators
 ===========

docs/releases/1.8.rst

@@ -42,6 +42,7 @@ Bug fixes
  * Header for search results on the redirects index page now shows the correct count when the listing is paginated (Nick Smith)
  * ``set_url_paths`` management command is now compatible with Django 1.10 (Benjamin Bach)
  * Form builder email notifications now output multiple values correctly (Sævar Öfjörð Magnússon)
+ * Closing 'more' dropdown on explorer no longer jumps to the top of the page (Ducky)
 
 Upgrade considerations
 ======================

wagtail/wagtailadmin/static_src/wagtailadmin/js/core.js

@@ -427,6 +427,8 @@ wagtail = (function(document, window, wagtail) {
 
         _closeDropDown: function(e) {
             this.state.isOpen = false;
+            e.stopPropagation();
+            e.preventDefault();
 
             var el = this.el;
             var $parent = this.$parent;
@@ -474,6 +476,3 @@ wagtail = (function(document, window, wagtail) {
     return wagtail;
 
 })(document, window, wagtail);
-
-
-