Use username instead of full_name when hovering over selection
Use username instead of full_name when hovering over selection

open-craft/xblock-group-project-v2,open-craft/xblock-group-project-v2,open-craft/xblock-group-project-v2,edx-solutions/xblock-group-project,edx-solutions/xblock-group-project,edx-solutions/xblock-group-project