Unknown values will cause 'git fetch' to error out.
+
See also the `--negotiation-tip` option for linkgit:git-fetch[1].
+
+fetch.showForcedUpdates::
+ Set to false to enable `--no-show-forced-updates` in
+ linkgit:git-fetch[1] and linkgit:git-pull[1] commands.
+ Defaults to true.