Cannot use spaces in workspace file names

There was a reported issue about caching directories with space names, and I think that the same issue exists in workspaces.

I had some files I wanted to add to a workspace that had spaces in the names, but I was unable to, even when trying to use \ or \ as a delimiter.

I eventually gave up, and just removed spaces from the names before uploading to the workspace and adding them back after, but I wanted to bring this issue up.

Here are the build jobs for double back-slash and single back-slash.