Description of problem:
When Cancel button is pressed during editting CSV file data provider properties - nothing happens. Only Second press of that button takes you back to the list of data providers.

Version-Release number of selected component (if applicable):

How reproducible:
Always

Steps to Reproduce:
1. Navigate to "Data providers" page in workspace "Showcase"
2. Click "Create new data provider"
3. Select type "CSV file"
4. Fill in some valid configuration of CSV provider and click Save (see screenshot)
5. On the screen "Editing data provider properties" click the Cancel button

Actual results:
No change is displayed in the GUI after the first click on the Cancel button. To get back it is necessary to click the Cancel button for a second time, which gets you back to the list of data providers.

Expected results:
I would expect either:
1) get back to the previous "screen" (Creation of data provider). This seems like more logical choice, creating a wizard-like experience. In that case maybe renaming of the cancel button to something like "Back" would be appropriate.

OR

2) get back to the initial list of data providers (however that would make user entered data for new CSV data provider disappear)

Additional info:
See screensot for explanation.