Creator crashes when using FakeVim mode on Mac

Steps to reproduce:

• open Creator and enable FakeVim mode, close and restart Creator
• create a new Qt application (I've used Qt Gui from template wizard)
• as soon the project is evaluated and parsed trigger 'Open File With...'
• select a simple text file (maybe the name is related: I could reproduce this issue almost everytime using files containing the word 'crash' inside their names)
• select Plain text editor if your being asked
  (sometimes you don't have to open the additional file, FakeVim crashes then already while opening the first project)

Current result:

• Creator crashes (4 out of 5 times)

See attached crash report.