This happens regardless of types and presence of source-code blocks
in the buffer. Previously interblocks were only exported when
source-code blocks of the same "type" were present in the org-mode
buffer. This decision was placed around the assumption that
exporting small inline non-block objects only made sense in the
presence of some related block type. This assumption is
artificially limiting and is now removed from org-exp-blocks.
Eric Schulte
Carsten Dominik