Comment 2 for bug 1815877

(Copying my comment in the proposed review)

I cannot reproduce the bug.

I went to Admin->Network->Networks and followed the instructions in the bug report. I input "foo" (invalid data) in "Allocation Pools" textarea.

After I clicked "Create" button, the form is displayed (I think this is expected).

The first tab (Network) is focused. The third tab "Subnet Details" contains an error, so I guess you thought "Next" button is shown instead of "Create" button. When I visit the third tab, I saw "Create" button.