IVE: Crash on copy and paste

• Create a Function Type
• Copy it (Ctrl-C)
• Rename it
• Paste it (Ctrl-V)
  => Segfault 💥

terminate called after throwing an instance of 'InconsistentModelException'

Same happens when:

• Import a component
• Rename that imported component
• Import the component again
  => Segfault 💥