My typemap file looks like
TypeMap: +w //depot/mystream/UnrealEditor/...
but when I check these files out, they are still readonly. I'm on Windows 10, if that makes any difference.
In the original thread there's no mention of stream, could that be breaking this? I've tried fetching the content in question in the context of the stream it was created in, but we'd also like this to work with virtual streams and path remapping further down the line.