Fix for operator == leaking an error

Author: benmajor

src/JQL.php

@@ -1700,7 +1700,14 @@ private function check_clause( $clause, $row )
             switch( $clause['operand'] )
             {
                 case '=':
-                    return strtolower($value) == strtolower($compare);
+                    if( is_scalar($value) && is_scalar($compare) )
+                    {
+                        return strtolower($value) == strtolower($compare);
+                    }
+                    else
+                    {
+                        return false;
+                    }
                     break;
 
                 case '==':