Fix T87356 & T87358: Small multi-input socket issues

T87356 occured because last_node_hovered_while_dragging_a_link was not
set on node_link_init.
The assert in T87358 failed because the sorting operation was called even
if the drag link contained a link to another socket.
A little one frame jump was caused because frame was refreshed after
picking a link and before sorting happened.

Reviewer: Hans Goudey

Differential Revision: https://developer.blender.org/D10940

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/editors/space_node/node_intern.h b/source/blender/editors/space_node/node_intern.h
index 6f281ee05cc..c350e50b524 100644
--- a/source/blender/editors/space_node/node_intern.h
+++ b/source/blender/editors/space_node/node_intern.h
@@ -58,9 +58,11 @@ typedef struct bNodeLinkDrag {
   bool from_multi_input_socket;
   int in_out;
 
-  /** Temporarily stores the last picked link from multi input socket operator. */
+  /** Temporarily stores the last picked link from multi-input socket operator. */
   struct bNodeLink *last_picked_multi_input_socket_link;
 
+  /** Temporarily stores the last hovered socket for multi-input socket operator.
+   *  Store it to recalculate sorting after it is no longer hovered. */
   struct bNode *last_node_hovered_while_dragging_a_link;
 } bNodeLinkDrag;