When using an Apple Pencil with the lasso tool, if I get too close to the edge of the page I frequently go just beyond the edge, causing the lasso tool to think that's the end of the lasso area selection. This typically does not result in the desired area being selected.

Instead of terminating the lasso area selection when going out-of-bounds, snap the lasso selection to the page boundary and continue lasso area selection.

(This seems to be the behavior of the macOS app when using the lasso tool with mouse. It would be good to enable similar behavior for Apple Pencil on iPadOS.)