Aleph One not saving changes to platform types made in Lua

[aaronfreed]

I have verified that these are read-write (as the Lua documentation says they are) by running a script to change platforms’ types and then printing Platforms[index].type for the platforms whose types I changed. However, if I run .save level, it saves them with their original types. This also happens if I send the map back to Weland’s visual mode, but running .save level and loading the saved version in Weland suggests that the issue is on Aleph One’s side.