When I edit frontpage from admin interface
and some of zones don't have any blocks,
such errors appear:

Error: eZTemplate @ extension/ezflow/design/admin/override/templates/edit/frontpage.tpl:98[8]
No such attribute for object(eZPageZone): blocks
Choose one of following: id, zone_identifier
Error: eZTemplate:foreach @ extension/ezflow/design/admin/override/templates/edit/frontpage.tpl:98[8]
Missing/malformed array to iterate through.
Error: eZTemplate @ extension/ezflow/design/admin/override/templates/edit/frontpage.tpl:98[8]
No such attribute for object(eZPageZone): blocks
Choose one of following: id, zone_identifier
Error: eZTemplate:foreach @ extension/ezflow/design/admin/override/templates/edit/frontpage.tpl:98[8]
Missing/malformed array to iterate through.

Also viewing (not editing) frontpage object gives error:

Warning: eZTemplate
No template could be loaded for "zone/3zoneslayout3.tpl" using resource "design"

but ezpublish/design/site/templates/zone/3zoneslayout3.tpl do really exists and ezflow finds it from user siteaccess.

Steps to reproduce

Install fresh 4.1.0alpha2
and ezflow1.1-0alpha2 extension