Steps to reproduce: - Open a kanban view inside the project app - Click on the "Quick Assign icon" - Select a user A - Directly unselect this user - Close the dropdown and open the edited record - you can see the user A is still assigned => bug This bug was occurred by a missing awaiting promise inside the deleteTag method. closes odoo/odoo#129996 X-original-commit: b345af5389cd0cc3eb5e373d50ea62afc4e46b22 Signed-off-by: Francois Georis (fge) <fge@odoo.com> Signed-off-by: Romain Estievenart (res) <res@odoo.com>