Raw HTML in body text after importing content using transmorgrifier

I'm using a transmorgrifier recipe to import some data from drupal into a Plone 4.1 based buildout. The buildout is based on https://github.com/claytron/drupal-plone-transmogrifier, (mostly I updated it to use plone 4.1 instead of 4.0). The import works, I successfully imported data from a drupal site into my plone site. The only issue is that the html tags from the imported html show as the literal tags.

If, after the successful import, I manually go to each item and select 'edit' then click 'save' then the html is interpreted properly, but that would be a lot of editing and saving in order to fix my problem.

see screenshot of freshly imported content with html tags showing.

The blueprint doing the actual import of the field is (I believe) the one shown below:

 [text_mimetype]
 blueprint = collective.transmogrifier.sections.inserter
 key = string:_text_mimetype
 value = string:text/html

I experimented with using text/structured instead of text/html in the blueprint but that gave the same result:

What I need is either an additional blueprint that causes the html to be interpreted or a hints on how to ensure that my html gets interpreted at import.

The full list of blueprints used in my pipeline are shown here: https://github.com/claytron/drupal-plone-transmogrifier/blob/master/src/my.migration/my/migration/config/base.cfg

If it works under Plone 4.0 but not under Plone 4.1, then I'm guessing it has to do with the "factor custom output transformations out of the editors" PLIP that was merged as a part of the Plone 4.1. I would look into the changes from that PLIP and see how the pipeline needs to be adjusted.