Fix last sync writey, a=chris

diff --git a/bin/mirror.php b/bin/mirror.php
index 4bedba5a9..85c646395 100644
--- a/bin/mirror.php
+++ b/bin/mirror.php
@@ -209,6 +209,7 @@ class Mirror implements CrawlConstants
         $start_time = microtime();
         $time = time();
         $session = md5($time . AUTH_KEY);
+        $write_sync_time = true;
         $request =
             $name_server.
             "?c=resource&time=$time&session=$session".
@@ -234,6 +235,7 @@ class Mirror implements CrawlConstants
                 $info[self::STATUS] == self::NO_DATA_STATE) {
                 $this->last_sync = $time;
                 $this->start_sync = $time;
+                $write_sync_time = false;
             }
         } else {
             $info[self::STATUS] = ($this->last_sync == $this->start_sync) ?
@@ -249,7 +251,7 @@ class Mirror implements CrawlConstants
                 crawlLog("So not notifying scheduler..");
             }
         }
-        if(count($this->sync_schedule) == 0) {
+        if(count($this->sync_schedule) == 0 && $write_sync_time) {
             $this->last_sync = $this->start_sync;
             $this->db->setWorldPermissionsRecursive($this->sync_dir, true);
             file_put_contents($this->last_sync_file,