Description of problem:
Run hosted-engine --deploy on NFS storage, continue until you need to enter storage domain name, stage stuck no matter what input you give.
Please provide storage domain name. [hosted_storage]: 
          Storage domain name cannot be empty. It can only consist of alphanumeric characters (that is, letters, numbers, and signs "-" and "_"). All other characters are not valid in the name.
          Please provide storage domain name. [hosted_storage]: hosted_storage
          Storage domain name cannot be empty. It can only consist of alphanumeric characters (that is, letters, numbers, and signs "-" and "_"). All other characters are not valid in the name.

Version-Release number of selected component (if applicable):
ovirt-hosted-engine-setup-1.2.5-1.el7ev.noarch

How reproducible:
Always

Steps to Reproduce:
1. See above
2.
3.

Actual results:
Deployment can not pass stage of storage domain name

Expected results:
Deployment must pass stage of storage domain name if name is correct and continue deployment

Additional info: