Fix bug in function agent::isOwner()

If the argument doesn't have an owner, then an access error is thrown
when we try to do ->guid.  Since there is no owner, just return false.
Otherwise, do the comparision as usual.

1 files changed, 4 insertions, 1 deletions

diff --git a/app/class/agent.class.php b/app/class/agent.class.php
index 6d0e20d..b4e6702 100644
--- a/app/class/agent.class.php
+++ b/app/class/agent.class.php
@@ -37,7 +37,10 @@ abstract class agent extends obj
      */
     public function isOwnerOf(obj $obj) : bool
     {
-        return $obj->getOwner()->guid == $this->guid;
+        if (!($own = $obj->getOwner()))
+            return false;
+
+        return $own->guid == $this->guid;
     }
 
     /*