NewTagFilter added an -eid value to the excluded IDs only when -etags
did not list the same value. The check came from the tag loops in
#1448, which changed the map it writes but not the map it reads. With
-eid dup -etags dup, the filter excluded nothing by ID. Workflow steps
still go through this filter, so a workflow ran the template that a -t
scan with the same flags excluded.
Build each filter set from its own flag with one helper, so no set
reads another flag's values. The insert-if-absent checks go too:
writing an existing map key is a no-op, and the one check that changed
anything was the wrong one. -itags stops deleting from the -etags set,
because Match already lets an included tag override its exclusion.
Fixes: #8004
Signed-off-by: Dwi Siswanto <[email protected]>