Hi,
Some users want to Keep seeing the settings they made in visualization when they change e.g the data table. Other users want to Reset them, So I opened this feature so the customer has the option to either Keep or Reset the settings he made.
Best Regards,
Note that there was improvements to the behavior of visualizations when the data table is changed in 7.11. It always try to retain the current config though, there is no option to force it to reset.