Update tracks setting for new comment track.

src/conference.php

@@ -360,7 +360,7 @@ function __load_settings() {
 
     function load_settings() {
         $this->__load_settings();
-        if ($this->sversion < 301) {
+        if ($this->sversion < 302) {
             $old_nerrors = Dbl::$nerrors;
             while ((new UpdateSchema($this))->run()) {
                 usleep(50000);

src/schema.sql

@@ -627,7 +627,7 @@ CREATE TABLE `TopicInterest` (
 -- Initial settings
 -- (each setting must be on its own line for createdb.php/createdb.sh)
 insert into Settings (name, value, data) values
-  ('allowPaperOption', 301, null),   -- schema version
+  ('allowPaperOption', 302, null),   -- schema version
   ('setupPhase', 1, null),           -- initial user is chair
   ('no_papersub', 1, null),          -- no submissions yet
   ('sub_pcconf', 1, null),           -- collect PC conflicts, not collaborators

src/updateschema.php

@@ -1248,6 +1248,22 @@ private function v297_helper_update_pid_rid($qstager, $pid, $rid, $cetime, $ause
         }
     }
 
+    private function v302_update_comment_tracks() {
+        if (($tj = $this->conf->setting_json("tracks"))) {
+            $changed = false;
+            foreach ((array) $tj as $tag => $v) {
+                if (isset($v->unassrev) && !isset($v->comment)) {
+                    $v->comment = $v->unassrev;
+                    $changed = true;
+                }
+            }
+            if ($changed) {
+                $this->conf->save_setting("tracks", $this->conf->setting("tracks"), json_encode_db($tj));
+            }
+        }
+        return true;
+    }
+
     /** @return bool */
     function run() {
         $conf = $this->conf;
@@ -3119,6 +3135,10 @@ function run() {
             && $conf->ql_ok("update Settings set value=2 where name='cmt_author' and value=1")) {
             $conf->update_schema_version(301);
         }
+        if ($conf->sversion === 301
+            && $this->v302_update_comment_tracks()) {
+            $conf->update_schema_version(302);
+        }
 
         $conf->ql_ok("delete from Settings where name='__schema_lock'");
         Conf::$main = $old_conf_g;