`--full-diff` does not work with line-log (`git log -L`)

[phil-blain]

One might want to look at the history of a bunch of lines in a file, i.e. git log -L 234,255:path/to/file, or of a particular function, i.e. git log -L:function_name:path/to/file, while still examining all changes introduced by the commits that touched these lines.

If one uses a pathspec with git log, i.e. git log path/to/file, this behaviour can be achieved with the --full-diff option. It would be great if this option would also work with git log -L.

[phil-blain]

A workaround for now is git log --format=%h --no-patch -L:git_fetch_config:builtin/fetch.c | xargs git show