1-a, \--append:: 2 Append ref names and object names of fetched refs to the 3 existing contents of `.git/FETCH_HEAD`. Without this 4 option old data in `.git/FETCH_HEAD` will be overwritten. 5 6-f, \--force:: 7 When `git-fetch` is used with `<rbranch>:<lbranch>` 8 refspec, it refuses to update the local branch 9 `<lbranch>` unless the remote branch `<rbranch>` it 10 fetches is a descendant of `<lbranch>`. This option 11 overrides that check. 12 13-t, \--tags:: 14 By default, the git core utilities will not fetch and store 15 tags under the same name as the remote repository; ask it 16 to do so using `--tags`. Using this option will bound the 17 list of objects pulled to the remote tags. Commits in branches 18 beyond the tags will be ignored. 19 20-u, \--update-head-ok:: 21 By default `git-fetch` refuses to update the head which 22 corresponds to the current branch. This flag disables the 23 check. Note that fetching into the current branch will not 24 update the index and working directory, so use it with care.