Mutate_towards doesn't respect limits on mutation type nor on Cancels.

Describe the bug

Mutate Towards claims it respects all restrictions on gaining a mutation such as cancels and pre-reqs. However it does not respect limits on type. So you cna have multiple hand,arm or leg mutations at once.

Attach save file

Xedra Evolved Gracken-trimmed.tar.gz

Steps to reproduce

Start as Gracken in XE. Spawn hand or leg based gracken improvements. Activate them. Notice that you now have multiple arm, leg, hand type mutations.

Expected behavior

New mutations of same type replace old mutations of same type

Screenshots

Versions and configuration

• OS: Windows
  • OS Version: 10.0.22631.5039 (23H2)
• Game Version: cdda-experimental-2025-03-23-1452-2-g1125be492c [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  Slowdown Fungal Growth [no_fungal_growth],
  Xedra Evolved [xedra_evolved]
  ]

Additional context

Further testing shows that cancels doesn't work either

Load the Xedra Evolved Gracken-trimmed.tar.gz save and reproduce the issue by activating hand- or leg-based Gracken improvements. Start at the Mutate Towards entry point and trace how mutation type limits and cancels are checked. Done means new mutations replace existing mutations of the same type and cancellation restrictions are respected.