docs(changelog): insert release notes for 1.2.32

They were only in the v1.2.x branch.

CHANGELOG.md

@@ -3101,6 +3101,18 @@ validation), you can overwrite the built-in `step` validator with a custom direc
 })
 ```
 
+<a name="1.2.32"></a>
+# 1.2.32 alternation-intention (2016-10-11)
+
+This release reverts the fix in 1.2.31 and provides an alternative fix that doesn't break Angular Material.
+
+## Reverts
+- **input:** ensure that hidden input values are correct after history back
+  ([ed44dd065](https://github.com/angular/angular.js/commit/ed44dd0659f346ced78a112e4a2b30d3af4fd572))
+
+## Bug Fixes
+- **$compile:** ensure that hidden input values are correct after history back
+  ([b8a0ecdd6](https://github.com/angular/angular.js/commit/b8a0ecdd6189fb111734eb5b6d4d473d0dcf4c36))
 
 
 <a name="1.4.13"></a>