fixing minor issues with git imports to fossil

as i've moved my code to fossil, i stumbled across some slight naming issues

let's call it trunk again

the default branch name in fossil is trunk. if the newest commit of your git export is a feature branch, your fossil import will use that as branch-name.

to fix this, run

fossil tag cancel --raw sym-featurebranchname <current fossil commit id>

to remove the feature branch

fossil tag add --raw branch <current fossil commit id> trunk

and you should have switched to trunk, check it with fossil branch current

it took me only this post from the mailing list to figure this out. not totally intuitive, still much more intuitive than git internals! :)