Invalid section definition crash

[data-sync-user]

This crash is seeing an uptick in 130.1

Unfortunately we weren’t able to reproduce this issue, but we can get the same issue by returning nil from the LegacyHomePageViewController when the UICollectionView asks for the layout for a section index.

There is a related issue that should be tracked after v132 goes live:

• https://mozilla.sentry.io/issues/3081363675/?project=6176941&query=NSInternal&sort=freq&statsPeriod=90d&stream_index=0

┆Issue is synchronized with this Jira Bug