Numeric delta of the bean block

Hello.

I found bug in process of working bean with EntityAPI. It will be happened when bean have numeric delta.
Delta will be set from title, when bean block is saving.

Description:

For example - you want to delete bean block with "delta" = 5 and real "bid" of this block is 3.

Part of callstack:
...
// Delete selected bean.
BeanEntityAPIController->delete();
// Load bean before delete.
EntityAPIControllerExportable->load();

in this function used snippet of code:

    // Only do something if loaded by names.
    if (!$ids || $this->nameKey == $this->idKey || is_numeric(reset($ids))) {
      return parent::load($ids, $conditions);
    }

In case with beans variable $ids contains "delta" of bean. In our example it's "5". 5 is numeric and in this case, entityAPI will load bean via "idKey" (bid). And when I will try to remove bean with delta = 5 and real bid = 3, entityAPI will load bean with bid = 5. If this bean is exists, it will be removed. If not, then no actions and I cannot remove my bean.