Since it is currently not possible to show a sub-project’s tasks in the parent project’s view, it would be a neat workaround to be able to apply the “like” operator to the “project” field
But this throws an error like "The task filter value ‘text’ for field ‘project_id’ is invalid.
So apparently the operator compares “text” against the numeric field ‘project_id’ and not the project title, and therefore does not accept text. However, the “=” and “in” operators happily accept text in this case.
“project like test%” does not work, but “project = test1” works.
This has been reported as a bug already here
but I am not sure that this was registered as a feature request.
It would really help filtering for similar projects or serve as a workaround for displaying all child project’s tasks with the parent project.