Fix segfaults when assigning to list column#4350

Merged

mattdowle merged 10 commits intoRdatatable:masterfrom

tlapak:fix_segfault_overwriting_listcol

May 18, 2021

Commits on Apr 2, 2020

Commits on Apr 3, 2020

Fix segfault when subassigning to list col by wrapping elements of RHS in list()
tlapak
committed

Commits on Apr 12, 2020

Added unit tests, fixed integer64 bug
tlapak
committed