Update & Continue Editing throws error if attempted more than once

[mpenna]

• Laravel Version: 5.6.39
• Nova Version: 1.1.7
• PHP Version: PHP 7.2.9-1+ubuntu18.04.1+deb.sury.org+1

Description:

When attempting the "Update & Continue Editing" action a second time around (and for all subsequent attempts), the following error message is shown: "Another user has updated this resource since this page was loaded. Please refresh the page and try again.". As a sidenote, I'm the sole user interacting with the app.

Steps To Reproduce:

Pick any resource, open its Edit view and then try the update & continue editing action more than once. Regardless if any fields have been altered or not, the aforementioned error is thrown.

[unlikenesses]

Possibly related to #838

[yehudahkay]

• 1

[mislam]

This is happening when I wait little bit then press update. If I quickly click update within 3-4 seconds, then it updates without any problem. This is a severe issue for us as it significantly slows down our daily business. Need a fix ASAP.

[jbrooksuk]

I couldn't replicate this in Nova v2.0.9

[klimov-paul]

This is a duplicate of #1082

@jbrooksuk, all steps to reproduce the issue are provided at the description of #1808.
To see the actual error you should manually change times at your clients machine (where browser is launched) to be in the past.
E.g. in case current time at server is '2019-10-16 10:35:00' - the current time at client will be '2019-10-16 10:30:00'.
This will cause timestamp written on model saving at the server side to be ahead of the timestamp generated by JavaScript at the resource retrival. Thus method ResourceUpdateController::modelHasBeenUpdatedSinceRetrieval() will return false causing the 409 error.