25bd01f2f7
This patch fixes the annoyance that when creating a node group where one of its nodes is connected to several other nodes, a separate output will be created for each link, even though they're all connected to the same socket in the group. Now, before adding an output for an outgoing link, the existing outputs are checked to find whether any output is already connected to the same socket. If such an output is found, it is reused instead of creating a new one. Reviewers: Severin Subscribers: Blendify Differential Revision: https://developer.blender.org/D1836