Pasting a very large text block into file name input freezes the editor

How to reproduce

  1. Copy a large amount of text, for instance a whole material blueprint
  2. Create a new asset, and when setting the name hit Crl-V

**What happens: ** The editor freezes

What should happen: an error should appear saying file name is too large

has been mentioned before, but good that you show its still a think in 4.8!