Add Robert's suggested changes. Fixes #229, fixes #197, fixes #210.

It should be noted that the issues with Profile are specific to Profile itself not the core. The search and filter features in the viewmembers function are not functioning because the results are not processed. Searching for users using the main site search works fine.

src/lib/util/DBUtil.php

@@ -2260,7 +2260,7 @@ public static function selectExpandedFieldArray($table, $joinInfo, $field, $wher
         $tables = self::getTables();
         $tableName = $tables[$table];
         $columns = $tables["{$table}_column"];
-        $fieldName = $columns[$field];
+        $fieldName = isset($columns[$field]) ? 'tbl.'.$columns[$field] : $field;
 
         $sqlJoinArray = self::_processJoinArray($table, $joinInfo);
         $sqlJoin = $sqlJoinArray[0];
@@ -2269,8 +2269,7 @@ public static function selectExpandedFieldArray($table, $joinInfo, $field, $wher
         $where = self::_checkWhereClause($where);
         $orderby = self::_checkOrderByClause($orderby, $table);
 
-        $alias = empty($sqlJoinArray[0]) ? 'tbl.' : 'a.';
-        $dSql = ($distinct ? "DISTINCT({$alias}$fieldName)" : "{$alias}$fieldName");
+        $dSql = ($distinct ? "DISTINCT($fieldName)" : "$fieldName");
         $sqlStart = "SELECT $dSql ";
         $sqlFrom = "FROM $tableName AS tbl ";