Like with states, allows reuse and prevents missing elements and uses the Lua engine to do the lookup instead of the Lua parser. Slightly faster, but may not be directly obvious in use.
Even though git internally knows the difference between upper and lower case, all of it's commands rely on the file system to do so as well. This results in incorrect behavior when renaming A to a for example, as the source and destination is identical on the file system according to git. Windows does support such renames, but git seems to shit itself.
Michael Fabian 'Xaymar' Dirks