Bookmark workflow

[Sean Kelley]

If you create a bookmark and make some commits and you later change
your mind, when you delete the bookmark will that also strip those
commits?  Or will I be stuck if I try to pull in changes from the
remote repo.

For example:

clone a repo
create a bookmark
make some commits with the bookmark
change mind and delete bookmark
try to pull in new changes from remote repo
but now forced to merge commits from deleted bookmark

So is the bookmark extension different from topic branches in GIT?
Because in my experimentation, I appear to be stuck with the commits
even after I have deleted the bookmark.  Perhaps I am misunderstanding
the intent of bookmarks.  I was hoping to use them like the
aforementioned but not apparently maintained "localbranch" extension.

Thanks,

Sean