Don't remove input values for previous dialog until success for Clone a repository

[Sairony]

When cloning a repository using URL hitting Clone closes the dialog window & begins the cloning, this is dandy on success but if any of the inputs were wrong & you're presented with an error you have restart the process from the beginning.

It would be an improvement if instead you're taken back to the "Clone a repository" dialog again with exactly the same state as before you hit Clone.

As it is now it's kind of like to those websites where you submit a form, get presented with an error and it's cleared all your input fields.

[tierninho]

@Sairony I tested this and the steps were as you described:

• Clone a repo on the URL tab.
• If error occurs, URL is cleared

I support repopulating the form with the URL however I suspect there are some complications with doing so that I am specifically unaware of.

One thing I want to warn against is the repopulating of the field if X amount of time has passed or if the tab is revisited later.

Leaving this open for other to weigh in.