QTable pop-up editing does not work with sorting

[martijn788]

Describe the bug
When you are editing a sorted column, the rows are flipping on the background. therefore you are changing all the different rows instead of the one you want to change.

Codepen/jsFiddle/Codesandbox (required)
https://codepen.io/martijn788/pen/QWNLgJY?editable=true&editors=101%3Dhttps%3A%2F%2Fquasar.dev%2Fvue-components%2Ftable

(Quasar table pop-up editing example from the documentation)

To Reproduce
Steps to reproduce the behavior:

1. sort on calories (desc)
2. Try to edit the calories of the top row to 1243232342 (typing one for one)
3. The rows are changing on the background

Expected behavior
I expect that the sortation will only change when the row is saved by clicking on the save button.

Screenshots

Platform (please complete the following information):
OS:
Node:
NPM:
Yarn:
Browsers: Chrome & Firefox
iOS:
Android:
Electron:

[pdanpdan]

Do not edit the column used as key and the column(s) used for sorting. Make a clone of them and sort by one and edit the other.

[martijn788]

#7553

I've created a pull request to update the documentation with the extra information you provided here.