[Desktop][Bug] Not importing overlapping activities

[jschram]

These two issues might be related, but differ on details:

• Activity cannot by synced because of overlapping activity #1089
• [Desktop][Bug] 2 activities synced as a single one #1203

Describe the bug
Activities on Strava with overlapping start/stop periods don't get loaded into the Elevate desktop app.

To Reproduce
It's a bit tricky to reproduce, but these steps will likely yield the same results:

1. Start an activity on a platform that syncs to Strava (like a Garmin watch)
2. With that activity running, start an activity from within the Strava app
3. Complete and save the Strava activity
4. Complete, save and sync the activity from step 1
5. Wait for Elevate to process the new activities
6. Notice that only one of the events is loaded into Elevate

Expected behavior
I can image this might not a bug, but a feature preventing duplicate activities. But maybe this can be solved with a manual review process, where these activities get flagged to accept or discard for the statistics?

Screenshots
Activities in Strava:

Activities in the Elevate desktop app (missing the main activity):

Notice the name of the activity being from the main activity, but the distance and time from the smaller one.

Environment

• OS: MacOS
• Desktop app version 7.2.0

Additional context
I noticed this behavior on the first sync in the Elevate desktop app.
While this might not be something that happens a lot, it did happen to me when my Fenix 7 Pro froze for a few minutes after a short pause mid-activity and I decided to track a bit of my activity with the Strava app instead, until the watch was usable again. (Make every km count, of course... 😅). Afterwards, both activities appeared on Strava like I expected, but the Elevate desktop app only loads the tiny bit that was tracked with the Strava app.