Take a step towards eliminating merging hilite_status rules during
highlighting by creating a single rule instead of multiple ones
when specifying multiple attributes for the same highlight via the
'O' command's menus.
Old:
(pick_one menu to pick a color) + (pick_one menu to pick an attribute)
| hilite_status:title/always/red&bold
(pick_one menu to pick a color) + (pick_one menu to pick an attribute)
| hilite_status:title/always/red&blink
New:
(pick_one menu to pick a color) + (pick_any menu to pick attributes)
| hilite_status:title/always/red&bold+blink
At present, rule selection during highlighting still merges multiple
applicable rules instead of finding the best one first, with the
problems that entails.
Bonus fix: a hilite_status rule for status conditions which specified
"no attributes" would clear attributes for all previous condition
rules rather than just the one(s) in that "no attributes" rule.