On a slightly deeper look at the comparison results between 1.14 and trunk, it looks like we're missing quite a few embedded images from .doc files. I initially thought these could be explained by different handling of macros, but that's not the issue.
I haven't traced the commit that did it (very likely my fault), but...
when we call this with a null character run.
the null character run then triggers skipping of the picture in this check because isRendered(cr) returns false if cr is null