#4400 Asks about leaving the page after altering table

[Michal Čihař]

The confirmation dialog appears when leaving page after altering table.

To reproduce:

• Open some table structure
• Choose to add 1 field
• Fill in field value and add it
• The confirmation page appears that field has been added
• Try navigating out of that page and you get the confirmation

[Minhaz]

This is because, the once the table has been created, the js triggers a redirection to table structure which is like clicking on the link.
Same applies for, #4399 & #4393, I'm on it!

[Minhaz]

fix sent! https://github.com/phpmyadmin/phpmyadmin/pull/1174
works good for bug#4399 & bug#4393 as well

[Marc Delisle]

Pull request accepted, thanks.