Graph Editor: Reproducible crash after copying and connecting node

[jsjtxietian]

Version: dfffe83f74e742edc3743f004da359c35cef5652 on windows

When I was debugging another issue, I found a crash accidently:

Repoduce step:

• Launch the Graph Editor with its default marble material.
• Click on the NG_marble1 node and copy it.
• Break the connect of he out of the origin NG_marble1 node to SR_marble1's subsurface_color
• Connect the out of the origin NG_marble1 node to the new created one's base_color_1
• Connect the new created one's base_color_1 to SR_marble1's subsurface_color

[fnRaihanKibria]

Hello, I would like to work on this ticket for ASWF Dev Days 2024.