ipfs add -r --nocopy Error: Failed to get block for zb2rh... The system cannot find the path specified.

#### Version information:
go-ipfs version: 0.4.11-rc2-
Repo version: 6
System version: amd64/windows
Golang version: go1.9

#### Type: Bug

#### Severity: High

#### Description:
I try to add folder with --nocopy folder and get error.

#### Reproduce:

some_folder\test.txt

`ipfs add -r -nocopy some_folder`

rename "some_folder" to "some_folder_renamed"

`ipfs add -r -nocopy some_folder_renamed`

Error: Failed to get block for zb2rh...: open C:\...\some_folder\test.txt: The system cannot find the path specified.