When cancelling an inline comment edit, exit the edit state after the response arrives

Summary: Ref T13513. This fixes a bug where clicking a line number, then clicking "Cancel" causes the paths panel to briefly update with an extra inline comment counted on the file.

Test Plan:
  - Clicked a line number.
  - Typed some text.
  - Clicked "Cancel".
  - Before patch: paths panel flashes "1".
  - After patch: paths panel stays stable.

Maniphest Tasks: T13513

Differential Revision: https://secure.phabricator.com/D21253

resources/celerity/map.php

@@ -13,7 +13,7 @@ return array(
     'core.pkg.js' => '0efaf0ac',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => 'b042ee8b',
-    'differential.pkg.js' => '79dfae6e',
+    'differential.pkg.js' => '5d560bda',
     'diffusion.pkg.css' => '42c75c37',
     'diffusion.pkg.js' => 'a98c0bf7',
     'maniphest.pkg.css' => '35995d6d',
@@ -381,7 +381,7 @@ return array(
     'rsrc/js/application/dashboard/behavior-dashboard-tab-panel.js' => '0116d3e8',
     'rsrc/js/application/diff/DiffChangeset.js' => 'b6bb0240',
     'rsrc/js/application/diff/DiffChangesetList.js' => '1e8658bb',
-    'rsrc/js/application/diff/DiffInline.js' => '9bb6f2ad',
+    'rsrc/js/application/diff/DiffInline.js' => '734d3c33',
     'rsrc/js/application/diff/DiffPathView.js' => '8207abf9',
     'rsrc/js/application/diff/DiffTreeView.js' => '5d83623b',
     'rsrc/js/application/differential/behavior-diff-radios.js' => '925fe8cd',
@@ -776,7 +776,7 @@ return array(
     'phabricator-dashboard-css' => '5a205b9d',
     'phabricator-diff-changeset' => 'b6bb0240',
     'phabricator-diff-changeset-list' => '1e8658bb',
-    'phabricator-diff-inline' => '9bb6f2ad',
+    'phabricator-diff-inline' => '734d3c33',
     'phabricator-diff-path-view' => '8207abf9',
     'phabricator-diff-tree-view' => '5d83623b',
     'phabricator-drag-and-drop-file-upload' => '4370900d',
@@ -1565,6 +1565,9 @@ return array(
       'javelin-util',
       'javelin-reactor-node-calmer',
     ),
+    '734d3c33' => array(
+      'javelin-dom',
+    ),
     '73ecc1f8' => array(
       'javelin-behavior',
       'javelin-behavior-device',
@@ -1792,9 +1795,6 @@ return array(
       'javelin-install',
       'javelin-util',
     ),
-    '9bb6f2ad' => array(
-      'javelin-dom',
-    ),
     '9c01e364' => array(
       'javelin-behavior',
       'javelin-dom',

webroot/rsrc/js/application/diff/DiffInline.js

@@ -736,8 +736,6 @@ JX.install('DiffInline', {
         this._drawUneditRows(text);
       }
 
-      this.setEditing(false);
-
       // If this was an empty box and we typed some text and then hit cancel,
       // don't show the empty concrete inline.
       if (!this._originalText) {
@@ -764,6 +762,7 @@ JX.install('DiffInline', {
     },
 
     _onCancelResponse: function(response) {
+      this.setEditing(false);
       this.setLoading(false);
 
       // If the comment was empty when we started editing it (there's no