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-rw-r--r--train_cmd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/train_cmd.c b/train_cmd.c
index a189a9d9a..ad0aa8965 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -1789,7 +1789,7 @@ int32 CmdRefitRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
if (new_cid != v->cargo_type) cost += _price.build_railvehicle >> 8;
num += amount;
if (flags & DC_EXEC) {
- v->cargo_count = 0;
+ v->cargo_count = (v->cargo_type == new_cid) ? min(amount, v->cargo_count) : 0;
v->cargo_type = new_cid;
v->cargo_cap = amount;
v->cargo_subtype = new_subtype;