So, if I did that, then my development workflow would look something like:
- Create initial application
- Run `add-to-ipfs-mfs.sh` script to add the folder to MFS
- Run `ipfs files stat /my-awesome-webapp` to get the hash of the current state (HASH1)
- Open web browser and navigate to HASH1 on my local IPFS node to preview my work
- Tweak the code
- Re-run `add-to-ipfs-mfs.sh` to update the code
- Run `ipfs files stat /my-awesome-webapp` to get the hash of the current state (HASH2)
- Open web browser and navigate to HASH2 on my local IPFS node to preview my work
- Decide that it's done, and tell the world to go look at HASH2

So, then my question is, what happens to HASH1? Does my IPFS node garbage-collect that automatically at some point?