Fix "is an object" check in may_remove_shipment.

typeof null === "object" for obscure historical reasons.

1 files changed, 2 insertions, 2 deletions

diff --git a/rules.js b/rules.js
index 9b10b63..f9553a6 100644
--- a/rules.js
+++ b/rules.js
@@ -2279,10 +2279,10 @@ states.transfer_dropped_shipments = {
 
 function may_remove_shipment() {
 	// Captured Goods
-	if (typeof game.op === "object" && game.op.type === "Attack")
+	if (game.op !== null && typeof game.op === "object" && game.op.type === "Attack")
 		return false
 	// Commandeer
-	if (typeof game.sa === "object" && game.sa.commandeer)
+	if (game.sa !== null && typeof game.sa === "object" && game.sa.commandeer)
 		return false
 	return true
 }