How to reproduce:
1. Download attached project files
2. Open AlstomPOC - > Scenes ->"Test" scene
3. Select AlstomPOC -> Models -> Gizmo.obj model

Expected result: Editor should not crash
Actual result: Editor Crashes when clicking on a model in project folder

Reproduced with: 5.4.0f3, 5.6.2f1, 2017.1.0.f1, 2017.1.0p3, 2017.2.0b6, 2017.3.0a3

Note: After delete Target -> Target_A GameObject in "Test" Scene, Gizmo.obj load sucessfully