Wizard/Review: Snapshot table should be filtered by selected repos

[regexowl]

Snapshot table on the Review step should include only repositories, that are selected and will be snapshoted in the image.

How to reproduce:
At least one template needs to be created beforehand!

1. open image wizard
2. go to Repeatable build step
3. select Enable repeatable build
4. select at least one repository on Custom repositories step
5. go to Review step
6. click on "State as of <snapshot-date>" link

Current behaviour:

• a popover "Repositories as of <snapshot-date>" opens and includes snapshot dates for all repositories added in Content for the active account

Expected behaviour:

• popover should include only repositories included in the image (selected on Custom repositories step) and their snapshot date