Hold starting position of the selection when auto pan is active

[YordankaAGP]

Dear Foblex team,
thank you for the awesome library and supports that you guys have put.
I know that 18.6.0 is just recently dropped but don't know if you guys knew if this issue exists but when we do a selection with auto pan, the starting point of the selection won't stay, instead the selection will move alongside the canvas's auto panning. We can easily replicate this from the auto pan docs

Because of this I'd like to raise a feature request to handle this scenario for selection to be able to select nodes that's in the current viewable area and nodes that is outside of the current viewable area, I assume we now have to hold context for selection's starting coordinates and ending coordinates.