Error when creating a CSD elections

[arsalansufi]

Error when creating a CSD elections.

1. I select all of the targeted contests
2. Select Save and Next
3. Select Save and Next on opportunistic contests (not adding any)
4. This toast pops up
   Everything seems to save just fine though and when I go back and repeat 2-3 (no need to select targeted contests, they already are), no toast.

Issue automatically created from Slack feedback reported by ginny:
https://votingworks.slack.com/archives/C01F2CH62TS/p1755088230354989?thread_ts=1755088230.354989&cid=C01F2CH62TS