Editing a report multiple times a week results in many duplicate items

[silfreed]

I'm not sure what it is about our particular installation if its:

• starting our week on Monday (opsweekly seems to really hate this)
• having multiple pagerduty services mapped to the same instance

But when our team edits their report to document how their on-call week is going, the same incidents will be imported multiple times resulting in a report that is many times the actual number of incidents we experienced.

Is there anything obvious that we should look at?