Cannot enter a white space to the Property Grid editors

[JaneSjs]

I want to set a title to a white space, however, the Title property resets to default (the name value) if I enter a white space in the Property Grid: https://user-images.githubusercontent.com/22372972/190340210-a12b3b2a-0e51-4100-8991-2fd90cc02a11.mp4