Hi,
Just select/ load the preset again, if it's a full preset reset you wan't. You might also be able to select it in the History.
I have for years wished for a reset to saved stage for both individual parameters and for the full preset. I would like in a playing situation to be able to reset individual parameters and the full preset to the saved state by using both mouse and midi controller. I still hope, but unfortunately none of the applications i have from any vendor has this feature. I don't know, if it's hard to do.