[Bug] Pasting quickly at start

Chowder

LINQPad Version: 5.04.00

Steps to Reproduce:

1. Open LINQPad
2. Quickly paste this into the editor

m=new DateTime(1234,DateTimeKind.Utc);

3. Wait a second, and the error will pop up.

Stack Trace: https://gist.github.com/JoshFisk/502da8c1a9e1b282ae5d

nescafe

Reproducible; if timing is an issue just press and hold CTRL-V at splash screen.
Works with arbitrary text in clipboard, e.g. asdfasdf: