Update to Drupal 8.0.0 beta 14. For more information, see https://drupal.org/node/2544542

core/modules/breakpoint/tests/modules/breakpoint_module_test/breakpoint_module_test.breakpoints.yml

@@ -1,12 +1,12 @@
 breakpoint_module_test.mobile:
   label: mobile
   mediaQuery: '(min-width: 0px)'
-  weight: 1
+  weight: 0
   # Don't include multipliers. A 1x multiplier this will be enforced by default.
 breakpoint_module_test.standard:
   label: standard
   mediaQuery: '(min-width: 560px)'
-  weight: 0
+  weight: 1
   # Don't include a 1x multiplier this will be enforced by default.
   multipliers:
     - 2x
@@ -15,7 +15,7 @@ breakpoint_module_test.standard:
 breakpoint_module_test.breakpoint_theme_test.group2.tv:
   label: tv
   mediaQuery: '(min-width: 6000px)'
-  weight: 0
+  weight: 2
   multipliers:
     - 1x
   group: breakpoint_theme_test.group2

core/modules/breakpoint/tests/themes/breakpoint_theme_test/breakpoint_theme_test.breakpoints.yml

@@ -1,32 +1,32 @@
 breakpoint_theme_test.mobile:
   label: mobile
   mediaQuery: '(min-width: 0px)'
-  weight: 3
+  weight: 0
   multipliers:
     - 1x
 breakpoint_theme_test.narrow:
   label: narrow
   mediaQuery: '(min-width: 560px)'
-  weight: 2
+  weight: 1
   multipliers:
     - 1x
 # Out of order breakpoint to test sorting.
 breakpoint_theme_test.tv:
   label: tv
   mediaQuery: 'only screen and (min-width: 1220px)'
-  weight: 0
+  weight: 3
   multipliers:
     - 1x
 breakpoint_theme_test.wide:
   label: wide
   mediaQuery: '(min-width: 851px)'
-  weight: 1
+  weight: 2
   multipliers:
     - 1x
 breakpoint_theme_test.group2.narrow:
   label: narrow
   mediaQuery: '(min-width: 560px)'
-  weight: 2
+  weight: 0
   multipliers:
     - 1x
     - 2x