Don't allow a minecart contraption to be put in a "portable container"

[drwoops]

Describe the Suggestion

Putting a minecart contraption in e.g. a toolbox results in sadness, as, when you open the toolbox again, a packet too big is created and your client is kicked. This is not intuitive and puzzling to recover from -- I have learned a chute under the toolbox works to recover the items, but the toolbox remains bugged and needs to be destroyed (presumably because it keeps a size 0 stack of the offending item in place as pointed out by Gostlyplays).

Be kind to the player and don't let them do that.

Screenshots and Videos

No response

Additional Context

No response

[simibubi]

This was fixed back in 0.5.0j