I recently converted the Tcl core CVS to GIT using cvs2git, and then used

    git fast-export --all | fossil import tcl.fossil

to convert this further to a fossil repository. When inspecting the git and fossil repositories I noticed the following difference:

The tag 'core-8-5-9' was listed as such in git. fossil however was listing this in the web interface not as 'tag', but under 'branches'. Looking at the timeline of this supposed branch it also seem (to me) that the tag was set as 'propagating to descendants'. Maybe that is why it got misclassified as branch ?

The git repo is 168M uncompressed, and 129 MB as bzip2 tarball. I can put it up somewhere if you wish to have for experiments.