Concurrent package restores may trigger multiple host restarts

If a function app needs to perform NuGet restore on multiple functions when it first starts, a shutdown signal may be processed before all restore operations have finished. This may cause several restarts if there are multiple functions pending restore in the app.

The issue names no files, tests, or entry points. Start by tracing the host startup path for concurrent NuGet restores and shutdown-signal handling, then identify how completion should be coordinated so pending restores do not trigger multiple restarts. Done means the described multi-function restore scenario no longer causes several host restarts.

Written by the indexing model from the issue text.