Crash after Copy&Paste of clips with cross-fades

Hi,
it seems there is a bug that cause DaVinci Resolve to crash after Copy&Paste of clips with cross fades.

- Open New Project
- Add 2 adiacent audio clips in Edit Page
- Go to Fairlight Page and copy the second clip.
- Drag using ruler and Paste it
- Try to resize the new clip or change dissolve duration




I've tested it on 3 systems:

- Asus X99-E WS USB 3.1 - Intel i7 6800K - RAM 32 Gb - GeForce 970Ti
- Decklink Studio 4K
- Windows 10 Pro 1709
- DaVinci Resolve Studio Beta 3

- Asus X99-E WS USB 3.1 - Intel i7 6850K - RAM 32 Gb - GeForce 1080Ti
- Decklink Extreme 4K
- Windows 10 Pro 1709
- DaVinci Resolve Studio Beta 4

- Asus Notebook N15V - RAM 16 Gb - GeForce 750M
- Windows 10 Home 1804
- DaVinci Resolve Beta 4