react error in console when adding event from a group in laboite

When adding an event from a group in laboite (+ button), i get the following error in browser console :

Warning: Cannot update a component (`AddEvent`) while rendering a different component (`GroupsSelector`). To locate the bad setState() call inside `GroupsSelector`, follow the stack trace as described in https://fb.me/setstate-in-render
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Also, the group can not be removed from selected groups when clicking 'X' button