Cataclysm-dda: Error messages about non-existent profession on loading old games

[GGgatherer]

Describe the bug

Subj. Caused by separating bionic professions into their own "mod".

Steps To Reproduce

1. Make a game in b11082 or earlier, make a cyberjunkie/broken cyborg/whatever else was thrown into new bioprof package
2. update to 11086+
3. load the game
4. see error message about non-existent profession
   ERROR : src/savegame_json.cpp:1262 [void avatar::load(const JsonObject&)] Tried to use non-existent profession 'cyberjunkie'

Expected behavior

Either omit it because what's the point of it anyway, or, better, game should auto-fix world mods to include bioprof package.

Versions and configuration

• OS: Windows 7x64
• Game Version: 0.E-6751-g9d6708b [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Aftershock [aftershock],
  Magiclysm [magiclysm],
  Alternative Map Key [alt_map_key],
  sees-player icon, retrodays [sees_player_retro],
  Stats Through Skills [StatsThroughSkills]
  ]

[GorillaxJax]

I think this was because in a recent update all bionic professions were moved to a mod.

[GGgatherer]

I... kinda sorta outright said that in "describe the bug" section.

[wapcaplet]

Confirmed. Using a savegame before commit 3350549fbe (when bionic professions were moved out of vanilla), I created a character using a bionic profession (like Cyberjunkie or Bionic Assassin), then updated the game to that commit and tried to load the save game.

 DEBUG    : Tried to use non-existent profession 'bionic_hitman'
 FUNCTION : void avatar::load(const JsonObject &)
 FILE     : src/savegame_json.cpp

I can ignore the message and continue, and I keep my bionics, but the character sheet no longer shows my profession name. After saving, the error no longer appears on a reload. It's unclear whether there are other side-effects.