The meta object is extended by some commonly used functionality that Garry's Mod does not expose directly. Some of these are Server only and will produce wrong results on the Client, also due to Garry's Mod not exposing things properly.
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