Prevent to select children if selection lock or instanced scene
Prevent to select children if selection lock or instanced scene

Fix #7086

(cherry picked from commit c3f4d676c0e3e02c33bd3aad4fb5b42c20201e7c)

pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1