[TYPO3-english] TYPO3 + Redis Cache Backend + Workspaces

[Viktor Livakivskyi]

Hi, List.

I've started using Redis as caching backend for all caches, that are using db. So far so good, but now I'm experiencing issues with workspaces caches.
Whenever I do some change, that involves processCmdmap_afterFinish() hook (i.e. mark BE user as "admin"), I'me getting an exception:
#1279578078: The specified tag is of type "integer" but a string is expected. 

The stacktrace is following:
6 TYPO3\CMS\Core\Cache\Backend\RedisBackend::flushByTag(0)
5 TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend::flushByTag(0)
4 TYPO3\CMS\Workspaces\Hook\DataHandlerHook::flushWorkspaceCacheEntriesByWorkspaceId(0)
3 TYPO3\CMS\Workspaces\Hook\DataHandlerHook::processCmdmap_afterFinish(TYPO3\CMS\Core\DataHandling\DataHandler)
2 TYPO3\CMS\Core\DataHandling\DataHandler::process_cmdmap()
1 TYPO3\CMS\Backend\Controller\EditDocumentController::processData()

So, the problem is in fact, taht LIVE workspace has id=0, and this is incorrect tag name for Redis.

Am I doing something wrong or this is a bug and I should report it to Forge?

Note: I'm using TYPO3 6.0