Wipe textarea immediately when submitting a new message in Conpherence

Summary: Fixes T11791. We do this in durable column, but not in regular Conpherence. I think this is the right place? Not sure how this will feel with high lag.

Test Plan: Submit lots of text in a Conpherence.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T11791

Differential Revision: https://secure.phabricator.com/D16969

resources/celerity/map.php

@@ -10,7 +10,7 @@ return array(
     'conpherence.pkg.css' => '0b64e988',
     'conpherence.pkg.js' => '6249a1cf',
     'core.pkg.css' => '5b1fcbf1',
-    'core.pkg.js' => '9d208f10',
+    'core.pkg.js' => '795a0f8b',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => 'a4ba74b5',
     'differential.pkg.js' => '634399e9',
@@ -378,7 +378,7 @@ return array(
     'rsrc/js/application/calendar/behavior-event-all-day.js' => 'b41537c9',
     'rsrc/js/application/calendar/behavior-month-view.js' => 'fe33e256',
     'rsrc/js/application/config/behavior-reorder-fields.js' => 'b6993408',
-    'rsrc/js/application/conpherence/ConpherenceThreadManager.js' => '358c717b',
+    'rsrc/js/application/conpherence/ConpherenceThreadManager.js' => 'c8b5ee6f',
     'rsrc/js/application/conpherence/behavior-conpherence-search.js' => '9bbf3762',
     'rsrc/js/application/conpherence/behavior-durable-column.js' => 'aa3bd034',
     'rsrc/js/application/conpherence/behavior-menu.js' => '7524fcfa',
@@ -566,7 +566,7 @@ return array(
     'conpherence-message-pane-css' => 'b085d40d',
     'conpherence-notification-css' => '965db05b',
     'conpherence-participant-pane-css' => 'ac1baaa8',
-    'conpherence-thread-manager' => '358c717b',
+    'conpherence-thread-manager' => 'c8b5ee6f',
     'conpherence-transaction-css' => '85129c68',
     'd3' => 'a11a5ff2',
     'differential-changeset-view-css' => 'b158cc46',
@@ -1157,17 +1157,6 @@ return array(
       'javelin-dom',
       'javelin-workflow',
     ),
-    '358c717b' => array(
-      'javelin-dom',
-      'javelin-util',
-      'javelin-stratcom',
-      'javelin-install',
-      'javelin-aphlict',
-      'javelin-workflow',
-      'javelin-router',
-      'javelin-behavior-device',
-      'javelin-vector',
-    ),
     '3ab51e2c' => array(
       'javelin-behavior',
       'javelin-behavior-device',
@@ -1975,6 +1964,17 @@ return array(
     'c7ccd872' => array(
       'phui-fontkit-css',
     ),
+    'c8b5ee6f' => array(
+      'javelin-dom',
+      'javelin-util',
+      'javelin-stratcom',
+      'javelin-install',
+      'javelin-aphlict',
+      'javelin-workflow',
+      'javelin-router',
+      'javelin-behavior-device',
+      'javelin-vector',
+    ),
     'c90a04fc' => array(
       'javelin-dom',
       'javelin-dynval',

webroot/rsrc/js/application/conpherence/ConpherenceThreadManager.js

@@ -468,6 +468,7 @@ JX.install('ConpherenceThreadManager', {
           }
         }));
       this.syncWorkflow(workflow, 'finally');
+      textarea.value = '';
 
       this._willSendMessageCallback();
     },