I have looked and found examples, but it does not seem to be working
With JQL, I can use
assignee = 'xxx'
and this returns issues currently assigned.
When I try:
assignee was 'xxx'
I get
Operator 'was' does not support the list value '("xxx")' for field 'assignee'
When I try:
assignee was in ('xxx')
I get
The value 'xxx' does not exist for the field 'assignee'.