The SNAPSHOT_START extraction used grep in a pipeline with pipefail
enabled. When a container config has no snapshot sections (no lines
starting with '['), grep returns exit code 1, causing set -e to
terminate the script without any error message.
This affected newly created containers that hadn't been snapshotted yet,
which is the common case for fresh Pulse installations via community
scripts.
Related to #780
rcourtman
87eb88dd98