Notification bundle header text for when a user receives post edits from multiple users on the same topic.
- $1 - formatted username of the first person who edited post
- $2 - username for GENDER
- $3 - title of the topic
- $4 - title for the page that the Flow board is attached to
- $5 - the count of other action performers, could be number or ("$1+"). e.g. 7 others or 99+ others
- $6 - a number used for plural support
- $7 - username of the person who receives the notification, can be used for GENDER.
- ("$1 and $4 others edited a post in "$2" on $3")