Gridfield pagination shows changed navigation warning without changes

[matt-in-a-hat]

If you use the pagination buttons within the default model admin gridfield then attempts to navigate away or edit a row will show the warning message:

Are you sure you want to navigate away from this page?
WARNING: Your changes have not been saved.

Without anything being edited, just press the next page button and it then marks the form as changed.

This is happening on SS 4.2.0, see an example set up here https://github.com/mediasuitenz/silverstripe-modeladmin-example

From what I can see, it looks like it might have been happening since #362, and removing the self.trigger('change'); line does seem to fix it for me. I'm not sure I understand why that was added though @flamerohr ?

[flamerohr]

the trigger is needed to update some state inside the GridField, I don't remember what but something else breaks when it's not there.

Also, something else is wrong and you're seeing the popup as a symptom of that, the trigger change isn't the root cause of the issue.

[tractorcow]

Possibly related to silverstripe/silverstripe-framework#7997

I think we just turn of change tracking for gridfield (outside of detail form that is).

[flamerohr]

it's related :)
I don't think turning off change tracking for gridfield would be a good idea, unless you find a solution which is opt-in for particular fields.
If there's inline editing for the GridField then you'd want those to trigger the change tracker (thinking userforms)

[ivoba]

I still have this in SS4.3.
Paginating a Gridfield will cause the "Are you sure you want to leave the page" to pop up.

Sorry not an issue of silverstripe-admin but of symbiote/silverstripe-gridfieldextensions, see symbiote/silverstripe-gridfieldextensions#286