[41 beta 1] LUA exception on ground context menu

[ccomp]

Reproduction steps:
Right-click on a ground tile and the exception gets thrown (sometimes?). I was able to get this thrown more consistently on farm land in Muldraugh.
There's an issue with this function call on line 70: trellisFarming.getCurrentVinePlanting(v:getSquare())

Stack trace:

function: doTrellisMenu2 -- file: ISTrellisMenu.lua line # 70
Callframe at: se.krka.kahlua.integration.expose.MultiLuaJavaInvoker@5452639a
function: createMenu -- file: ISWorldObjectContextMenu.lua line # 1458
function: createMenu -- file: ISMenuContextWorld.lua line # 46
function: createWorldMenu -- file: ISContextManager.lua line # 28
function: doRClick -- file: ISObjectClickHandler.lua line # 45
function: onObjectRightMouseButtonUp -- file: ISObjectClickHandler.lua line # 239.
[01-06-20 03:15:12.532] ERROR: General, 1591002912532> ExceptionLogger.logException> Exception thrown java.lang.RuntimeException: attempted index: getCurrentVinePlanting of non-table: null at KahluaThread.tableget line:1684..
[01-06-20 03:15:12.534] ERROR: General, 1591002912534> DebugLogStream.printException> Stack trace:.
[01-06-20 03:15:12.541] LOG : General, 159100291254> -----------------------------------------