Crash when using search in inspector

[Superxwolf]

If you open up an inspector window, and in the search bar type something then press enter, it will crash. Tested on Sample 8. Interesting enough it will not crash if there's nothing typed on the search bar when you press enter.

[JohnKlenk]

Also covered in issue 459. Maybe better to keep that newer one open instead, since it has some important details