This could be related to
Steps to reproduce:
- Create custom tag: class:raid
- Assign to a template.
- In "Latest Data", list the group in which has a host that includes the template with above tag.
- Select the filter: class: raid
- Observe that the filter filters out everything except data represented by selected template.
- In "Latest Data", list a group that has no hosts of above template.
- Observe no data is listed.
Applying the Reset button clears everything including the selected group. Without resetting, tags cannot be deselected that do not apply to the currently filtered group.