Describe the bug
I went to test 2 mods, immersive railroading and whisperwoods and I let an unmanned locomotive run to see if any bugs will araise from leaving a loco do its own thing while looking for bugs in a whisperwood's mob's behaviour. The whisperwoods mob killed me, I respawned and the train was stopped. It's wheels were still rotating, its sound was going but it didn't move. And I couldn't board the loco (well I could but it put me awhile down the track spinning in place until I dismounted)
Second time I let the loco run on its own and did /kill and then respawned and again the loco stopped, and continued making noise

How to reproduce
Steps to reproduce the unwanted behavior:

1. choose a locomotive (idk if it makes a difference but I was using a diesel)
2. fuel it up and throttle up and let it move on its own(without you in the cab)
3. do ./kill to kill yourself and then respawn and check back at the loco

Expected behavior
what should happen is that the loco should continue moving even after a player death

Screenshots
already put some in discord

System Information
OS: winters 10

System Memory: [e.g. 16gb

Allocated Memory: 9gb

CPU: [e.g. "Intel I7 7700k"]

GPU: [e.g. "MSI 1080 8gb"]

IR-Version: [e.g. "1.6.1_1.12.2"]

Forge-Version: 1.15.2 31.2.45

Modlist
immersive railroading
betteranimalsplus
betteranimals
iceandfire
wyrmroost
whisperwoods
optifine
terrafoirged
just enough items

already gave a log as you know

Additional context
Provide any additional information that might help us fix the bug.

Fixed