PUT existing file with Writeable Gateway not returning expected result.

Version information:

go-ipfs version: 0.4.8- Repo version: 5 System version: amd64/linux Golang version: go1.8

Type:

Bug

Severity:

Medium

Description:

When using a writeable HTTP gateway:

• If I PUT to a directory tree for a path that doesn't exist in the tree, the gateway returns the expected result: the ipfs-hash for an edited directory tree that contains the uploaded file at the specified path.
• However, if I PUT to a directory tree for a path that already exists in the tree, I instead get back the ipfs-hash for the file I uploaded- as if I had used the POST interface.
• I would expect, in that case, to receive the ipfs-hash of the root of an edited directory tree that contains the uploaded file in place of the path's former content.