Does not work with some workflows

Hi,
I cannot use the image link feature. the image/getRelatedLink never gives me anything.
By digging a little bit, I realized that I'm using plone.app.blob and it may be the cause, but I don't know how to handle it.
I've tried to register the indexer with IATBlobImage instead of IATImage, and when I reindex the getRelatedLink index through the portal_catalog, the code of the indexer is correctly run, but this is not enough. getRelatedLink gives me nothing :(

Could you help on this ?
Using the latest Plone 4.3 and released easyslideshow to date.
thanks in advance

Start by reproducing the image link workflow on Plone 4.3 with plone.app.blob and inspect image/getRelatedLink. Compare the IATImage and IATBlobImage indexer registrations, then verify the getRelatedLink index through portal_catalog. Done means the indexer returns a related link for blob-backed images.

Written by the indexing model from the issue text.