Dino Dave Mission NullPtr if asked for new job immediately after completing previous

[SpellingSword]

Describe the bug

Dino Dave will ALWAYS give a NullPtr bug instead of a proper mission when asking for a new one in the same dialogue window as the one you turned in the last one.

Closing the dialogue after completing a mission and talking to him again allows to get the next one without bugs.

Steps To Reproduce

Steps to reproduce the behavior:

1. Complete DD's mission
2. Without saying "bye" ask if he has any jobs for you
3. Get NullPtr bug

Expected behavior

Should work the same as if you close the dialogue first

Versions and configuration

• OS: Windows
  • OS Version: 10.0 1809
• Game Version: 0.D-9759-g0d2c11b [64-bit]
• Graphics Version: Tiles
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Aftershock [aftershock],
  No Fungal Monsters [No_Fungi]
  ]

Additional context

I first noticed it after completing the small cardboard mission, but couldn't reproduce because it didn't happen after reload (Since I quit the conversation to save, after turning it in).

Here's a save file where it is reproducible:
Enigma.zip

To avoid the bug, turn in the medium boxes, say goodbye, THEN talk again and ask for a new mission.

[I-am-Erk]

Well, I can't find anything unusual about dino dave's missions as opposed to pretty much anyone else's, so I'm not sure what's up here.