Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: rB26bd5ebd42e3
Short description of error
When trying to export selected object as FBX in the 2.81/2.82(experimental), clicking on the object's name in the Object Properties editor, copying, and pasting it in the Blender File View, "File Name" field, causes a bunch of interface panels on the right to disappear and the object not export.
Exact steps for others to reproduce the error
Works in the default scene in 2.81/2.82. Select the default cube. Click File - Export - Fbx. With the File View open, click on the cube's name in the Object properties editor, copy it, and paste it in the File View's File name (adding .fbx at the end makes no difference). Click Export FBX.