ID 224769 - Deep exrs with 0 values for alpha are not read correctly by the DeepRead node

Problem summary
Deep exrs with 0 values for alpha are not read correctly by the DeepRead node.

Customer reported version
Nuke 10.0v2

Customer reported platform
macOS 10.11

Steps to reproduce

1. Open Nuke
2. Create a DeepRead
3. Read in the attached .exr in a DeepRead node
4. Read in the attached .exr in a regular Read node

Result: DeepRead node renders parts black compared to the regular Read node

Reproduced by Support in:
Nuke 13.2v2 - Windows 10, CentOS 7 
Nuke 13.0v1 - Windows 10
Nuke 12.0v1 - Windows 10
Nuke 11.0v1 - Windows 10 
Nuke 10.0v1 - Windows 10
Nuke 9.0v9 - Windows 10
Nuke 9.0v1 - Windows 10
Nuke 8.0v6 - Windows 10 - CentOS 7 

Expected behavior
For the scene to be the same in the Read and DeepRead Nodes

Actual behavior
DeepRead node renders parts black compared to the regular Read node